Important Facts About Solar System

Important Facts of Solar System

Image Source: Wikipedia 

We live on a planet named ‘Earth’. Likewise, Earth also exists in its home with other 7 planets, only star ‘Sun’ and many other small objects called asteroids, comets, dwarf planets, meteors etc. So basically the Solar system is a system of Sun, 8 planets, dwarf planets, asteroids, meteors and comets under the gravitational influence of the Sun.

Origin

• There are 3 to 4 major theories of the evolution of the universe and ultimately of the solar system. The prominent theory among all of these is the Big Bang theory.
• According to this theory proposed by Georges Lemaitre, the universe is evolved from a small singularity and then expands over the next 13.8 billion years and still expanding.
• It led to the formation of many billions of galaxies, solar systems, stars etc.
• Our solar system lies in a spiral-shaped galaxy called ‘Milky Way’. The nearest galaxy to us is ‘Andromeda’.
• Generally, there is a Black hole at the centre of every galaxy. ‘Sagittarius A’ is the black hole at the centre of Milky Way.

Solar System

• In our solar system, 8 planets and many other celestial bodies revolve around the sun in elliptical orbits.
• The dwarf planet named Pluto was removed from the list of the planets by the International Astronomical Union in 2006.
• Sun is the powerhouse of the solar system. It is the only source of energy in the solar system. 
• Planet Mercury is nearest to the sun while Neptune is the farthest planet from the sun.
• There is an asteroid belt between Mars and Jupiter. Planets inside the belt are distinctly different from those outsides in terms of size, mass, and composition etc. 
• Planets inside the belt are called Terrestrial planets and they are Mercury, Venus, Earth, and Mars. Planets outside the best are called Jovian planets and they are Jupiter, Saturn, Uranus, and Neptune.
• Terrestrial planets are nearer to the sun, with metallic minerals and rock crust, with a thin atmosphere and have less number of natural satellites. While Jovian planets are away from Sun, made up of hot gases, have rings around them, and have a large number of natural satellites.

Facts about the Sun and Planets

 

1. Sun

• The only star in our solar system and powerhouse of the solar system.
• Composed of Hydrogen (73%), Helium (25%) gases and other metals. Sun carries almost 99% mass of our solar system.
• Approximately 15 crore Kilometres further away from Earth. It takes around 8 minutes 30 seconds for light at the speed of 3 lakh Km/sec to reach the earth.
• Temperature at surface= 5800 K or 5600 degree Celsius.
• Temperature at the centre= 15.7 million K

2. Mercury

• Closest planet to the Sun and very hot planet.
• Smallest planet in the solar system with a diameter of 4900 Km.
• Fastest Planet with speed of 172500 Km per hour to complete revolution around Sun in 88 days.
• The planet with no water and gases like Nitrogen, Hydrogen, Oxygen and Carbon Dioxide.

3. Venus

• Hottest planet in the solar system with the surface temperature of 478 degree Celsius.
• Also known as “Earth’s Twin”. It is because of the similarity in size and mass between Venus and Earth.
• One of the two planets in the solar system which rotate around the axis in a clockwise direction.
• Brightest Star in the Solar system. It can be seen in the morning and evening with open eyes. So known as “Evening Star” and “Morning Star”.

4. Earth

• The only Planet to give support to life with a pleasant atmosphere.
• Also known as “Blue Planet” because of the presence of water on it.
• It has one natural satellite named “Moon”.

5. Mars

• Known as “Red Planet” because of Iron-rich red soil.
• Second smallest planet in the solar system after Mercury.
• Has two natural moons “Phobos” and “Deimos”.
• Has a thin atmosphere and surface with valleys, craters, deserts, and ice caps etc.
• “Olympus Mons” – Largest volcano and the tallest mountain in the solar system lies on Mars.

6. Jupiter

• Largest planet of the solar system with the shortest rotation
• Has an atmosphere filled with Hydrogen, Helium and other gases
• The third brightest object in the night sky after the Moon and Venus.
• Great Red Spot, a giant storm in the solar system exists on this planet.
• Has at least 79 moons, including 4 large Galilean Moons “Io, Europa, Ganymede, and Callisto” which were discovered by Galileo. “Ganymede” is the largest among them.
• It has an unclear ring around it.

7. Saturn

• Second largest planet in the solar system and a gas giant.
• Has bright and concentric rings around it which are made up of tiny rocks and pieces of Ice.
• Saturn can float on water because it has less density than water.
• Has at least 82 moons and Titan is the largest among them.

8. Uranus

• Has the third-largest planetary radius and fourth-largest planetary mass in the Solar system.
• Greenish in colour.
• Discovered by William Herschel in 1781.
• Known as “Ice Giant”. The atmosphere of Uranus is composed of Hydrogen and Helium primarily, but it also contains more water, ammonia etc.
• Has coldest planetary atmosphere in the solar system.
• Rotates clockwise on its axis like Venus but unlike other planets
• Has at least 27 moons. Famous moons- Miranda, Ariel and Umbriel

9. Neptune

• Farthest planet from the Sun.
• It is also “Ice Giant”. Atmosphere primarily composed of Hydrogen and Helium.
• Bluish in colour because of Methane.
• Fourth largest planet and the third most- massive planet in the solar system
• Discovered by Johann Galle and Urbain Le Verrier in 1846. The only planet in the solar system found by Mathematical Predictions.
• Has known 14 satellites. Famous moon – Triton.

10. Pluto

• As per the new definition of Planets determined by International Astronomical Union (IAU), Pluto has been omitted from the list of planets in 2006.
• Pluto is considered as a dwarf planet (size between planets and asteroids) now and it is a member of Kuiper Belt.
• Kuiper Belt is a spherical boundary outside the orbit of Neptune containing a number of asteroids, rocks, and comets.

Other Space Objects

1. Asteroids

• These are small objects; rocks (mostly debris) revolve around the Sun.
• They are mostly found in the Asteroid Belt which lies between the orbits of Mars and Jupiter.
• These are also known as Minor planets.
• Ceres, Vesta, Psyche are some famous and largest asteroids in the solar system.

2. Meteors and Meteorites

• These are also known as Shooting stars.
• Meteors are the small-sized rocky material which is generally formed due to asteroid collision and approaching the earth.
• Because of Earth’s atmospheric layers, these small rocks burn before reaching the surface.
• But there are some meteors which do not burn completely and land on Earth’s surface. They are called as Meteorites.
• Willamette, Mbozi, Cape York, and El Chaco are some meteorites found on the Earth.
• Lonar lake, Maharashtra in India is supposed to be created by a meteor impact in Pleistocene Epoch.

3. Comets

• These are shiny, luminous “Tailed Stars”. These are rocky and metallic materials surrounded by frozen gases.
• These are generally found in Kuiper Belt. They travel towards the Sun.
• Their tail faces opposite of the sun and head faces towards the Sun.
• They become visible when they travel close to the Sun.
• Halley comet is famous which appeared last time in 1986 and which reappears after every 76 years

Importance Information Facts on Indian States - Mizoram

 Major Point About - Mizoram States 

Know Your India States   Mizoram

• Mizoram is a state in northeastern India, with Aizawl as its capital city.
• The name is derived from "Mizo", the name of the native inhabitants, and "Ram", which means land, and thus Mizoram means "land of the Mizos".

 

Union territory	21 January 1972
State	20 February 1987
Capital	Aizawl
Largest city	Aizawl
Districts	11
Government
Governor	P. S. Sreedharan Pillai
Chief Minister	Zoramthanga (MNF)
Deputy Chief Minister	Tawnluia
Legislature	Unicameral (40 seats)
Parliamentary constituency	Rajya Sabha 1 Lok Sabha 1

 

High Court- Gauhati, Aizawl

Mizoram State Symbols

Title	Symbol
State animal	Himalayan serow (Capricornis thar)
State bird	Mrs. Hume's pheasant (Syrmaticus humiae)
State flower	Red Vanda (Renanthera imschootiana)
State tree	Indian rose chestnut (Mesua ferrea)

National Parks

• Phawngpui Blue Mountain National Park
• Murlen National Park
• Dampa Tiger Reserve
• Tawi Wildlife Sanctuary
• Mountain National Park

Wildlife Sanctuaries

•  Dampa WLS (TR)
•  Khawnglung WLS
•  Lengteng WLS
•  Ngengpui WLS
•  Pualreng WLS
• Tawi WLS
• Thorangtlang WLS
•  Tokalo WLS  

Tiger Reserve

• Dampa

Airport

• Lengpui Airport (Lengpui Ṭumhmun)

Popular Cultural Festivals in Mizoram

• Mim Kut: The Mim Kut festival is normally observed in the months of August and September, following the cultivation of maize. People observe this festival by dancing, singing, drinking, and eating.
• Pawl Kut:  The Pawl Kut festival refers to a straw harvesting festival since the word Paul stands for straw. The festival is normally held in the month of December every year.
• Chapchar Kut: The Chapchar Kut is one more important festival which is observed in the month of March, following the conclusion of their most difficult job of Jhum manoeuvre, that is, forest-clearing (removal of the leftovers of burning).

•  Mim Kut
•  Thalfavang Kut

Language

• Mizo
• English

National Boundary

• Manipur
• Assam
• Tripura

Rivers

• Chimtuipui River
• Tlawng
• Talu
• Tuirial

Dances

• Cheraw
•  Khuallam
• Chailam
• Chawnglaizawn
•  Chheih Lam
•  Sarlamkai (Solakia)

 

Mountain Peaks/Hill Stations

• Phawngpui (Blue Mountain)

Famous Places in Mizoram

image source: Wikipedia

• Tualchang is the biggest monolith in Mizoram. Tualchang is situated near Tualchang village in the Aizawl district. Tualchang is a line of stone blocks.
• Sibuta LungSibuta Lung is one of the most popular sites in Mizoram. Sibuta Lung is a memorial stone that was erected about 300 years by the Palian chief. The memorial Sibuta Lung offers a story of jilted love and lust for revenge.
• Tomb of Vanhimailan was built in the memory of Vanhimailan Sailor. Vanhimailian Sailo was a great chief who ruled over Champhai. It overlooks the vast Champhai plain.
• Phawngui, also known as the Blue Mountain, is the highest peak of Mizoram and is considered to be the abode of Gods. Phawngpui located in the Chhimtuipui district is famous for rhododendron and orchids.
• Mangkahia Lung is a memorial stone which was erected in the memory of Mangkhaia in 1700 AD. It is a very large memorial stone also called Mangkhaia’s stone.
• Mizoram State Museum has wildlife specimen as well as tribal artefacts and weapons, musical instruments and clothing from various tribes. It reflects the historical and cultural journey of Mizoram.

2011 Census

• Mizo has population of 10.97 Lakhs
• Mizo has a sex ratio of 976 females to 1000 males.
• The literacy rate of the state is 91.33 % .
• Child Sex Ratio is 970.

Tribes

• Chakma, Garo, Hajong, Lakher, Mikir, Synteng

Lakes

• Palak, Tamdil, Rungdil and Rengdil

GI Tags

• Mizo Chilli

 

Waterfall

• Vantawang Falls

Caves

• Khuangchera Puk, Lamsai Puk, Far Puk, Pukzing Puk, Tluangtea Puk

Clothings

• The original garments of the Mizos is known as Puan.
• Common Puan are: Puanchel, Kawechel, Ngotekherh, Hmar Am, Cyhna Hno.

 

Famous Persons of Mizoram

• Jeje Lalpekhlua – is the famous football player who plays for Mohun Bagan. He Received AIFF Emerging player of the year award (2013).

 

Interesting Facts About Mizoram

Historical Facts about Mizoram

• Mizoram literally means land of Mizo people or land of hilly people. The tribes residing in the Mizo hills are called as Kukis.
• During pre-British era the region was divided among the local chiefs each ruling their respective tribal territories. Inter-tribal wars were common, slavery and head hunting were common practices.
• Before the British annexation of the Mizoram (before 1895) there were about 60 local chiefs. A number of Christian missionaries were set up at that time. There was large influence of christian missionaries on society and up to now Christianity is the main religion of the state.
• Under British rule, Mizoram was a part of Assam Province under the name Lushai Hills district and Aizawl was its headquarters.
• After Indian independence, the rule of local chiefs was abolished as per Acquisition of Chief’s Rights Act of 1954.
• There was a major famine called Mautam in 1959 because of large population of rats (rat flood).  A local body was formed to help aid the famine victims called Mizo National Famine Front. This group later converted to a political group Mizo National Front (MNF). This group became notorious for armed insurgency in the region.
• Mizoram became the 23rd state of Indian Union by carving out from Assam on 20 Feb 1987.

Geographical Facts about Mizoram

• Mizoram is located in southerneast part of country and landlockd with three other states – Assam in north, Manipur in northeast and Tripura in southwest. Mizoram shares international borders with two countries Myanmar in east and Bangladesh in west.
• Tropic of cancer runs through the state nearly at middle.
• Mizoram is the second least populous state of country.
• The biggest river of the state is Chhimtuipui also known as Kaladan.
• The Palak lake is the biggest of the state covering about 30 hectares area.
• Mizoram faces a unique problem of rats. At every 48 years a particular species of bamboo flowers after which the population of rats become tremendously high and this is referred as Rat Flood (Mautam or Bamboo Death).  This rat flood destroys entire villages, crops and farm yields.

Economic Facts about Mizoram

• Economy of the state is poor and in terms of GDP Mizoram ranks at last position among all Indian states. (as per year 2014 GDP data)
• Mizos practice Slash and Burn cultivation (Jhum or shifting cultivation).
• Mizoram is leading producers of Bamboo in India and supplies 14 % of India’s commercial bamboo.
• Main Agriculture products of Mizoram – Mandarin oranges, maize, paddy, pulses, sugarcane, chillies, ginger, turmeric, potato, tobacco, banana, pineapple, passion fruit, grapes, papaya.
• Main industries of Mizoram – Handlooms, rice mills, flour mills, brick making, bamboo handicrafts, sericulture.
• Popular Crafts of Mizoram – Puans woven on traditional looms, thi-hi (amber bead necklace), Shawls, cane and bamboo work etc

Social and Cultural Facts about Mizoram

Chapchar Kut Festival of Mizoram

• Chapchar Kut is the famous colorful festival of Mizoram which is celebrated to mark the arrival of spring. It is observed in the month of march after completion of Jhum (cleaning of agriculture fields by burning). This festival is celebrated with great zeal and enthusiasm.
• Pawl Kut is celebrated in the month of December after harvest. A ritual Chawnghnawt is observed during Pawl Kut festival. Mother and their children are made to sit on a platform. In this ritual mother feeds his children with eggs and meat. Meat and eggs are indispensable part of this festival and is observed in abundance in families.

Mizo girls in traditional Puanchei and Zakuolaisen dress 

• Puan is traditional dress most commonly used by Mizo women. Puanchei is another traditional dress wore by Mizo girls during festival seasons of Chapchar Kut and Pawl Kut. Zakuolaisen is a traditional blouse with chrimson stripes. Ngotekherh is another traditional puan wrapped around waist and is common attire for both men and women.
• Mizoram has high literacy rate of 91.58 % which is remarkably well above India’s average literacy rate of 74.04 %. Mizoram is the second most literate state of India after Kerala.
• Mizoram is one of three states of India with Christian majority (87 %). Most of the people are from diverse tribal origin who converted to Christianity.
• Mizoram is the second most literate state of India just after Kerala.
• The people living in Mizo hills are also called as Kukis.
• Mizoram is also called as Song Bird of East. 

 

 

 

 

 

7th Sem Electrical Engineering All Subject Previous Year Paper Download In PDF

DOWNLOAD ALL 7TH SEM ELECTRICAL ENGINEERING PREVIOUS  YEAR PAPER IN PDF👈

👉Electric drive

👉Utilization of Electric power

👉Power system-III

👉Renewable & Nonconventional Energy

👉Computer Network

Best of Luck 👍

I hope u like this..🙏

please drop your comment 💬

List of Famous Books and Authors

• Two Year Eight Months and Twenty –Eight Night –Salman Rushdie
• The Red Sari –Javier Moro
• Freedom in Exile: Dalai Lama
• My Favourite Nature Stories- Ruskin Bond
• Neither a hawk nor a dove –Khurshid M Kasuari
• Faces and Places Professor –Deepak Nayyar
• Indian Parliamentary Diplomacy- Meira Kumar
• Farishta –Kapil Isapuari
• Super Economies –Raghav Bahal
• China: Confucius in the Shadow –Poonam Surie
• My country My Life ‐ L.K.Advani
• Joseph Anton ‐ Sulman Rushdie (Autobiography)
• The Sahara Testaments ‐ Tade Ipadeola
• Narendra Modi: A Political Biography ‐ Andy Marino
• My Unforgettable Memories ‐ Mamata Banerjee
• Rationalized Roman for Kashmiri ‐ Dr. R L Bhat
• Strictly Personal, Manmohan and Gursharan ‐ Daman Singh
• The Wrong Enemy: America in Afghanistan, 2001‐ 2014 ‐ Carlotta Gall
• Lal Bahadur Shastri: Lessons in Leadership ‐ Pavan Choudary
• Walking With Giants ‐ G. Ramachandran(former Finance Secretary )
• Crusader or Conspirator? Coalgate and other Truths ‐ PC Parakh
• The Accidental Prime Minister: the making and unmaking of Manmohan Singh ‐ Sanjaya Baru
• God of Antarctica ‐ Master Yashvardhan Shukla (At the age of 13)
• My Years with Rajiv and Sonia ‐ R.D.Pradhan
• Khushwantnama ‐The Lessons of My Life ‐ Khushwant singh
• Syntheism – Creating God in The Internet Age ‐ Alexander Bard
• One Life is Not Enough ‐ Natwar Singh
• The Lives of Others ‐ Neel Mukherjee
• My Music My Life ‐ Pt Ravi Shankar
• I am Malala ‐ Malala Yousufzai and Christina Lamb
• A Man and A Motorcycle, How Hamid Karzai Came to Power ‐ Bette Dam
• True Colours — Adam Gilchrist
• Assassination of Rajiv Gandhi: An Inside Job? ‐ Faraz Ahmad
• The God of Small Things ‐ Arundhati Roy
• Interpreter of Maladies ‐ Jhumpa Lahiri
• And then One Day: A Memoir ‐ Nasiruddin Shah (Autobiography)
• Unaccustomed Earth ‐ Jhumpa Lahiri
• Lowland ‐ Jhumpa Lahiri
• Truth Always Prevails ‐ Sadruddin Hashwani
• Playing It My Way – Sachin Tendulkar and Boria Mazumder
• Unbreakable (Autobiography of Mary Kom) ‐ Mary Kom
• Enoch, I am a British Indian ‐ Sarinder Joshua
• Duroch ModiNomics ‐ Sameer Kochar
• Public Issues Before Parliament ‐ Vijay Darda
• Water, Peace, and War – Confronting the Global Water Crisis ‐ Brahma Chellaney Ambedkar
• Awakening India’s Social Conscience ‐ Dr. Narendra Jadhav
• Munger through the Ages ‐ Late DP Yadav
• Akbar – The Aesthete ‐ Dr Indu Anand
• Runs in Ruins — Sunil Gavaskar
• India at Risk ‐ Jaswant Singh
• The Narrow Road to the Deep North ‐ Richard Flanagan (Australian)(Man Booker)
• Untold Story of the Indian Public Sector ‐ Dr UD Choubey
• Final Test: Exit Sachin Tendulkar ‐ Dilip D’Souza
• Worthy Fights: A Memoir of Leadership in War and Peace ‐ Leon Panetta and Jim Newton
• Not Just an Accountant ‐ former CAG Vinod Rai
• Grandmaster Repertoire ‐ 1.e4 vs The French, Caro‐Kann, and Philidor ‐ Parimarjan Negi
• A Bend in the river ‐ V.S. Naipaul
• Dark Star: The Loneliness of Being Rajesh Khanna ‐ Gautam Chintamani
• Half Girlfriend ‐ Chetan Bhagat
• Iqbal: The Life of a Poet, Philosopher and Politician ‐ Biography of Allama Muhammad Iqbal (Spiritual Father of Pakistan)
• 50 years of man in space ‐ Garik Israelien, Brian May and David J Eicher
• Black Tornado: The Three Sieges of Mumbai 26/11 ‐ Sandeep Unnithan
• Dramatic Decade: The Indira Gandhi Years ‐ Pranab Mukherjee 2014: The Election That Changed India ‐Rajdeep Sardesai
• Your Dreams Are Mine Now: She Showed him What Love ‐ Ravinder Singh
• Born Again on the Mountain- Arunima Sinha
• Flood of Fire –Amitav Ghosh
• 30 Women in Power: Their Voices, Their Stories- Naina Lal Kidwai
• The Courage to Act – A Memoir of a Crisis and Its Aftermath: Ben S. Bernanke
• To the Brink and Back: India’s 1991 Story: Jairam Ramesh
• Globalisation, Democratization and Distributive Justice: Dr. Mool Chand Sharma
• Ramcharitmanas (105-year-old Urdu copy ): Shiv Brat Lal
• Mrs Funnybones: Twinkle Khanna
• Making India Awesome: Chetan Bhagat
• An Autobiography: Jawahar Lal Nehru
• The Kumbh Mela: Mapping the Ephemeral Megacity: Tarun Khanna
• R.D. Burman: The Prince of Music: Khagesh Dev Burman
• Ghosts of Calcutta: Sebastian Ortiz
• Green Signals: Ecology, Growth, and Democracy in India: Jairam Ramesh
• Transcendence: My Spiritual Experiences with Pramukh Swamiji: Abdul Kalam
• Beyond Doubt: A Dossier on Gandhi’s Assassination: Teesta Setalvad
• Modi – Incredible emergence of a star (in the Chinese language): Tarun Vijay
• Education of Muslims: Professor JS Rajput
• Sourav Ganguly: Cricket, Captaincy and Controversy: Saptarshi Sarkar
• Flood of Fire: Amitav Ghosh
• Super Economies: Raghav Bahl
• Complete Story of Indian Reforms: 2G, Power & Private Enterprise: Pradeep Baijal
• Unbelievable – Delhi to Islamabad: Prof Bhim Singh
• Food for All: Uma Lele
• Family Life: Akhil Sharma( winner of the Folio Prize 2015)
• Faces and Places: Prof. Deepak Nayyar
• Indian Parliamentary Diplomacy- Speaker’s Perspective: Meira Kumar
• Editor Unplugged: Media, Magnates, Netas and Me: Vinod Mehta
• Fragile Frontiers: The Secret History of Mumbai Terror Attacks: SK Rath
• Why I Assassinated Gandhi: Nathuram Godse and Gopal Godse
• 'Life On My Terms: From the Grassroots to the Corridors of Power: an autobiography of Sharad Pawar
• What Happened to Netaji? authored by former journalist Anuj Dhar
• 'Rebooting India: Realizing a Billion Aspirations: authored by Nandan Nilekani and Viral Shah
• 'Interlinking of Indian Rivers authored by Radha Kant Bharati
• 'Dreaming Big: My Journey to Connect India: Sam Pitroda
• 'Two Years Eight Months and Twenty Eight Nights: Salman Rushdie
• 'The Courage to Act – A Memoir of a Crisis and Its Aftermath' authored by Ben S. Bernanke
• 'Dreaming Big: My Journey to Connect India: autobiography of Sam Pitroda written with the help of David Chanoff, an American author.
• 'Two Years Eight Months and Twenty Eight Nights authored by the British Indian novelist Salman Rushdie
• 'To the Brink and Back: India’s 1991 Story' written by former Union Environment & Forest Minister (Independent Charge) Jairam Ramesh.
• 'Making India Awesome' written by – Chetan Bhagat
• 'Green Signals: Ecology, Growth, Democracy in India' written by Jairam Ramesh
• 'Uniki' written by – CH Vidyasagar Rao, Governor of Maharashtra.
• 'Sourav Ganguly: Cricket, Captaincy and Controversy' written by Saptarshi Sarkar.
• 'Flood of fire' written by Amitav Ghosh.
• “India Central Asia Relations”: The Economic Dimension authored by Amiya Chandra.
• “Kashmir: The Vajpayee Years” – authored by AS Dulat and Aditya Sinha.
• “37 Bridges and Other Stories” – authored by noted Pakistani author Aamer Hussein
• Who Moved My Interest Rate? authored by Duvvuri Subbarao, the former Governor of Reserve Bank of India (RBI)
• “The Unseen Indira Gandhi” authored by Dr. KP Mathur
• “A Life in Diplomacy” written by former Indian diplomat Maharajakrishna Rasgotra.
• “Courage & Commitment: An Autobiography by Margaret Alva
• Book “MS: A life in Music” authored by T.J.S. George
• “One Part Woman” authored by Perumal Murugan
• The book “Ace against Odds” is the autobiography of an Indian tennis player. Sania Mirza
• “Beyond NJ 9842: The Siachen Saga” authored by Nitin Gokhale
• “The Great Derangement: Climate Change and the Unthinkable” authored by Amitav Ghosh
• “Ringside With Vijender” is authored by Rudraneil Sengupta
• "The making of India: The untold story of British Enterprises" authored by Kartar Lalvani
• 'Blood on my Hands: Confessions of Staged Encounter authored by Kishlay Bhattacharjee
• 'Shashi Kapoor - the Householder, the Star' authored by Aseem Chhabra
• 'The Kiss of Life' authored by Emraan Hashmi
• 'Anything But Khamosh: The Shatrughan Sinha Biography' authored by Bharathi S Pradhan
• 'A State in Denial' authored by BG Verghese
• 'No Time to Pause' authored by - Pavithra Ramesh
• 'Param Vir: A War Diary' authored by - Manju Lodha
• 'Hindutva or Hind Swaraj' authored by - U.R. Ananthamurthy
• “Flying in High Winds: A Memoir” authored by - K. Mishra
• 'Alphabet Soup for Lovers” authored by - Anita Nair
• 'The Life and Death of Adolf Hitler' authored by - James Cross Giblin
• 'The Story of Kashmir through the Ages” authored by - Arjan Nath Chaku
• “Framed As a Terrorist: My 14-Year Old Struggle to Prove My Innocence” authored by - Mohammad Aamir Khan
• “Standing Guard— A year in Opposition”? authored by - P Chidambaram
• “Gandhi: An Illustrated Biography” authored by – Pramod Kapoor
• "That Long Silence” authored by – Shashi Deshpande
• "Fixed! Cash and Corruption in Cricket” authored by - Shantanu Guha Ray
• “Standing On An Apple Box” authored by – Aishwarya Dhanush
• “Who was Shivaji?” authored by - Govind Pansare
• 'The Z Factor,” a book written by Subhash Chandra
• The Ministry of Utmost Happiness – Arundhati Roy
• The Birds of Banni Grassland – Gujarat Institute of Desert Ecology – Released by Hon’ble PM Narendra Modi
• Age of Anger: A history of the Present – Pankaj Mishra
• Son of Thundercloud – Easterine Kire
• Lincoln in the Bardo – George Saunders – 2017 Booker
• Inside Parliament: Views from the front row – Derek O’Brien
• The Sellout – Paul Beatty – 2016 Booker
• A brief history of Seven killings – Marlon James – 2015 Booker
• A horse walks into a bar – David Grossman – the Man Booker International Prize
• The Ibis Trilogy – Amitav Ghosh
• Selection day – Aravind Adiga
• Death under the Deodars – Ruskin Bond
• An Era of Darkness: The British Empire in India – Shashi Tharoor
• India Shastra: Reflections of the Nation in our time – Shashi Tharoor
• The Great Derangement: Climate Change And The Unthinkable – Amitav Ghosh
• Democrats and Dissenters – Ramachandra Guha
• I Do What I Do – Raghuram Rajan
• The Dramatic Decade: The Indira Gandhi Decade – Pranab Mukherjee
• The Turbulent Years: 1980 – 1996 – Pranab Mukherjee
• Thoughts and Reflections – Pranab Mukherjee
• Indira: India’s most powerful Prime Minister – Sagarika Ghose
• Why Growth Matters – Jagadish Bhagawati
• India’s Tryst with Destiny – Jagadish Bhagawati
• An Uncertain Glory: India and its contradictions – Amartya Sen and Jean Dreze
• The Country of First Boys – Amartya Sen
• Gandhi before India – Ramachandra Guha
• Scion of Ikshvaku – Amish
• Sita: Warrior of Mithila – Amish
• Two Years Eight Months and Twenty-Eight Nights – Salman Rushdie
• A Manifesto For Change – Dr A.P.J Abdul Kalam
• Advantage India: From Challenge to Opportunity - Dr A.P.J Abdul Kalam
• Beyond 2020: A Vision for Tomorrow’s India - Dr A.P.J Abdul Kalam
• Pathways to Greatness - Dr A.P.J Abdul Kalam
• The Mother I Never Knew – Sudha Murthy
• Serpent’s Revenge – Sudha Murthy
• Percy Jackson and the Olympians Series – Rick Riordan
• The Girl on the Train – Paula Hawkins
• Diary of a Wimpy Kid – Jeff Kinney
• Fifty Shades Series – E.L. James
• And the Mountains Echoed – Khaled Hosseini
• War & Peace - Leo Tolstoy

5th Sem Electrical Engineering All Subject Previous Year Paper Download In PDF

DOWNLOAD ALL 5TH SEM ELECTRICAL ENGINEERING PREVIOUS  YEAR PAPER IN PDF

👉ECONOMIC FOR ENGINEERING

👉ELECTRICAL MACHINE-II

👉POWER SYSTEM-I

👉CONTROL SYSTEM-I

👉DATA STRUCTURE & ALGORITHM

👉MICROPROCESSOR AND MICROCONTROLLERS

ECONOMICS FOR ENGINEERING Previous Year Paper-5th Sem Electrical Engineering Makaut(WBUT)

ECONOMICS FOR ENGINEERING

QUESTION 2014

(Multiple Choice Type Question)

1) Which of the following statements is correct?

a) engineering economics provides a set of methods by which economic worth of alternatives can be compared

b) engineering economics never takes into account non-commercial considerations

c) engineering economics does not take into consideration tax liabilities of the firm

d) engineering economics is not applicable in the case of public sector undertakings

Ans-A

ii) The Opportunity Cost of a good is

a) the time lost in finding it

b) the quantity of other goods sacrificed to another unit of that good

c) the expenditure on the good

d) the loss of interest in using saving

Ans-B

iii) Return of shareholders' fund is determined by which of the following formula?

a) net profit after tax I shareholders' fund b) net profit after ux I shareholders' equity

c) net profit before I shareholders' fund d) net profit before tax I shareholders' equity

Ans-A

iv) Margin of safety is equal to

a) actual sales minus BEP sales      b)BEP sales minus Actual sales

c) actual sales minus Actual cost    d)none of these

Ans-A

v) Patent is an example of

a) current asset        b)fixed asset

c) fictitious asset   d)intangible asset

Ans-D

vi) The value of the Power-Sizing Exponent (E) indicates Diseconomies of Scale when

a) 0<=E<1b) E > I c) E < 0 d) E = l

Ans-B

vii) If A and B are two mutually non-exclusive events, then P (A or B) is

a)P(A) x P(B)    b)P(A)+P(B)

c) P(A)+P(B)-P(A)P(B) d)P(A)P(B)-P(A)-P(B)

Ans-B

viii) Current Ratio is the ratio of

a) Current Assent by Current Liabilities b) Current Liabilities by Current Asset

d) Current Capital by Current Liabilities c) Current Capital by Current Asset

Ans-A

9) In decision-making risk is measured by

a) expectation b) mean  c) variance d) median

Ans-C

ECONOMICS FOR ENGINEERING

QUESTION 2015

(Multiple Choice Type Question)

1)Contribution margin is the

a) excess of sale price over variable costs

b) excess of sale price over fixed costs

c) excess of sale price over both variable and fixed costs

d) none of these

Ans-A

2) The firm's decision to invest its funds in fixed and long term assets is known as

a) Assets Planning b) Capital Budgeting

c) Long Term Budgeting d) Short Term Budgeting

Ans-B

3) Which of the following balance appears on the debit side of the Trial Balance?

a) A loss b) An expenditure c) An Asset d) All of these

Ans-D

4) In Double Entry System of Book Keeping every business transaction affects

a) two accounts b) two sides of same account

c) the same account on two different dates d) all of these

5) In this method we start with the higher rate of depreciation in the first year of the life of the assets ad reduce this rate in succeeding periods till its year of salvage.

a) Straight line method b) Reducing balance method

c) Sum of the years digit method d) Sinking fund method

Ans-C

6) Annualized capital recovery cost is defined as

a) C (A/P, i, n ) + S (A/F, i, n)

c) -C(A/P, i, n) + S(A/F, i, n)

b) -C(A/P, i, n)+ S(A/F, i,n)

d) C(A/P, i, n) -S(A/F, i,n)

Ans-D

7) A numerical description of the outcome of an experiment is called a

a) Descriptive statistic b) Probability Function

c) Variance d) Random Variable

Ans-B

8)The example of Replacement problem is

a) Obsolescene b)Deplection

c) Deterioration due to aging d) All of these

Ans-D

9) What is the full form of PVIF?

a) Present Value income Factor b)Present value interest Factor

c) Profit Value income Factor d) None of these

Ans-B

10) If actual sales are Rs. 40,000 and SEP sales are Rs. 30,000, the Margin of Safety is Rs

a) 70,000 b) 10,000 c) 1,40,000 d) 15,000

Ans-B

11) FVIF5%3 =

a) 1.050 b) 1.103 c) 1.158 d) 1.216

Ans-C

12) In Replacement Analysis, the existing asset which is considered for replaceme nt is called__________asset.

a) challenger b) striker c) winger d) defender

Ans-D

                                                    ECONOMICS FOR ENGINEERING

QUESTION 2016

(Multiple Choice Type Question)

1)Accounting Equation is

a) Capital= Assets - Liabilities

c) Assets = Capital - Liabilities

b) Liabilities - Capital - Assest

d) none of these

Ans-A

2)A person if deposits Rs 50,000 in a bank at an interest of 10% compounded annually, then future value at the end of 5 years will be

a) 60,525 b) 70,525 C) 85,525 d)90,525

Ans-A

3)If in a power sizing model the power sizing index is greater than 1, then

a)Per unit price increases with increase with increase in quantity

b)Per unit price decreases with increase with increase in quantity

c)Per unit price remains with increase with increase in quantity

d)Per unit price remains with increase with decrease in quantity

Ans-A

4) If A and B are two independent events then it can be expressed as

a) P(AUB) b) P(AxB) c)P(A)xP(B) d) none of these

Ans-C

5) Which are the determinants of economic life of an asset?

a) Capital recovery cost b) Average operating and maintenance cost

c) Sum of capital recovery cost d) all of these

Ans-D

6) What is the relation between the slopes of Total Cost (TC) and Total Revenue (TR) cu rves?

a) Slope of TR> Slope of TC b) Slope of TR< Slope of TC

c) Slope of TR = Slope of TC  d) No fixed relation

Ans-D

7) A portion of the learning curve is

a) Parallel to y axis b) Parallel to x axis

c) Cuts the x axis d) Cuts the y axis

Ans-C

8) If the inflation rate is 6% per year and the market interest rate is known to be 15% per year,

what is the implied real interest rate in this inflationary economy?

a) 11.45% b) 9.00% c) 8.49% d) 8%

Ans-C

9) Sunk cost is

a) Original investment + depreciation - repairing expenses

b) Original investment- depreciation+ repairing expenses

c) Original investment + depreciation + repairing expenses

d) Original investment - depreciation - repairing expenses

Ans-C

10) Which of the following is not applicable to bottom-up approach to cost estimation?

a) The project under consideration is considered at the highest aggregate level

b) The project under consideration is split into smaller parts and their respective components are identified

c) Cost estimates are made for each component of each small part and added up

d) Cost estimates are made for each component of each part of the project and are added up to arrive at the total

Ans-A

11) A deposit of Rs. 1, 1O,000 was made for 31 days. The net interest after deducting 20 

withholding tax is Rs. 890.36. Find the rate of return annually.

a) 12.25 b) 12.75 c) 11.75 d) 11.95

ANS-D

12) If Index Number for a certain period is equal to 100, then

a) Price are increasing b) Prices are decreasing

c) Prices remain constant d) Change in price cannot be predicted

Ans-C

ECONOMICS FOR ENGINEERING

QUESTION 2017

(Multiple Choice Type Question)

1) Cost reflected in accounting system only 1s called

a) Cash cost b) Overhead cost c) Book cost d) Direct cost

Ans-C

2) The opportunity cost of a good is

a) the time lost in finding it

b) the quantity of other goods sacrificed to the another unit of that good

c) the expenditure on the good

d) the loss of interest in using saving

Ans-B

3) Which one is the right Accounting Equation?

a) Assets - Liabilities = Capital

c) Assets + Capital = Liabilities

b) Assets + Liabilities - Capital

d) None of these

Ans-A

4) Inflation makes

a) future rupees less valuable than present rupees

b) future rupees more valuable than present rupees

c) future rupees equal to present rupees

d) none of these

Ans-A

5) If A and B are two independent events then P (A and 8) 1s

a) P(A)xP(B) b)P(A)+P(B) c)P(A)/P(B) d) P(A)-P(B)

Ans-A

6) To compute the construction cost per square foot of a building

a) per unit model will be used b) segmenting model wi11 be used

c) learning curve estimation process will be used d) none of these

Ans-A

7) Which one 1s fixed cost?

a) Oeprec1at1on of fixed assets

c) Cost of advertising

b) Excise duty

d) Sales tax

ANs-C

8) Which one of the following is helpful for measuring inflation?

a) Learning curve b) Segmentation model

c) Consumer price index d) MARR (Minimum Attractive Rate of Return)

Ans-C

9) In a decision tree arrows coming out of which node have probabilities?

a) Decision node b) Random node

c) Both (a) and (b) d) None of these

Ans-D

10) The present worth of an alternative is 0. What do we know about the value of the future worth?

a) FW <0 b) FW =0 c) FW >0

d) Cannot be determined without cash flows

Ans-B

11) If the inflation rate is 6% per year and the market interest rate is known to be 15% per year,

what is the implied real interest rate in this inflationary economy?

a) 11.45% b) 9.00 % c) 8.49% d) 8%

Ans-C

12) A machine worth Rs. 1,00,000 is purchased by paying Rs. 20,000 down payment and 12

monthly installments of Rs. 8,000 each. The book cost at the time of purchase is

a) Rs 1,00,000 b) Rs. 8,000 c) Rs. 80,000 d) Rs 12.000

Ans-A

ECONOMICS FOR ENGINEERING

QUESTION 2018

(Multiple Choice Type Question)

1)What is true the relationship between AC and MC?

a)AC cuts MC from below b) MC cuts AC from below

c) MC, and AC do no cut each other d) AC equals MC when AC is at its maximum

Ans-B

2) If Current Ratio is 2.2 and Current Liabilities is Rs 80,000 then the amount of current asset will be

a)Rs. 1,76,000 b)Rs. 1,34,000 c)Rs. 1,60000 d)Rs.1,72,000

Ans-A

3) In replacement analysis is old machines are known as

a) Defender b) Challenger c) Both (a) and (b) d) None of these

Ans-A

4) At Break-even point

a) Total revenue= Total Cost

c) Total revenue= Total Vanable Cost

b) Total revenue = Total Fixed Cost

d) All of the above

Ans-A

5) Demand-pull 1nflation may be caused by

a) An increase in costs 

b) A reduction in government spending

c) A reduction in interest rates

d) An outward shift in aggregate supply

Ans-C

6) Goodwill 1s a

a) Fixed asset b) Current asset

c)Fictitious assest d)Wasting assest

Ans-A

7) A large angle of incidence indicates

a) A low rate of profit

b) high rate of profit

c)No profit,no loss

d) None of the above

Ans-B

8) A card is drawn from a deck of 52 cards. Find the probability that it is either a red king or a black queen.

a) 2/13 b) 1/13 c) 5/13 d) 8/13

Ans-B

9) IRR stands for the rate of return for which

a)NPV=O b)NPV=l c)NPV=-1 d) NPV 1s maximum

Ans-A

10) The present value of 1 to be received after 3 years compounded annually at 10%

a) 0.909 b) 0.826 c) 0.751 d) None of these

Ans-C

11) A uniform series of payment occurring at equal interval of time 1s called ____

a) Annuity b) Amortization c) Depreciation d) Bond

Ans-A

12) The following value(s) of the Power-Sizing Exponent (E) indicates Economies of scale

a) 0 < E <I b) E > 1 c) E = 0 d) E 1

Ans-A

Electrical Machine-II Previous Year solved Paper Makaut-(wbut) 5th sem Electrical Engineering-

Makaut-(wbut) 5th sem Electrical Engineering

Electrical Machine-II

Question-2009

MCQ

i)In a double Revolving field Theory ,The slip of the forward motor is S, then the slip of the backward motor is

a) 2S b) S

c) 2–S d) S–2.

Ans-(c)

ii) In a shaded pole motor, shading coils are used to

a) Reduce winding losses

b) Reduce friction losses

c) Produce rotating magnitic field

d) Protect against sparking.

Ans-(c)

iii) A universal motor is one which has

a) constant speed

b) constant output

c) capability of operating both on a.c. and d.c. with comparable performance

d) maximum efficiency.

Ans-(c)

iv) The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is

a) 4000 r.p.m. b) 3600 r.p.m.

c) 3000 r.p.m. d) 1500 r.p.m.

Ans-(c)

v) The direction of rotation of single-phase induction motor can be reversed by

a) reversing the leads of the main winding 

b) reversing the leads of the auxilliary winding

c) reversing the supply leads

d) either (a) or (b).

Ans-(d)

vi) A capacitor start and capacitor run induction motor is supplied from

a) single-phase supply  b) 2-phase supply

c) 3-phase supply d) none of these.

Ans-(a)

vii) The electrical angle, β between adjacent slots in  a 4-pole alternation with 36 slots is in electrial degree

a) 9˚ b) 10˚

c) 20˚ d) 90˚.

Ans-(a)

viii) Which of the following motors will give relatively high starting torque.

a) capacitor start motor b) capacitor run motor

c) split phase motor  d) shaded pole motor.

Ans-(a)

ix) In single-phase repulsion motor, power factor is

a) always leading  b) always unit

c) always lagging  d) none of these.

Ans-

x) Induction generator runs at

a) supersynchronous speed

b) sub-synchronous speed

c) synchronous speed

d) none of these.

Ans-(a)

xi) When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is

a) maximum  b) minimum

c) zero d) none of these.

Ans-(c)

Electrical Machine-II

Question-2010

MCQ

1)In  an  alternator  the  voltage  generated  per  phase  is proportional to

a)  number of turns per coil

b)  flux per pole

c)  frequency of wave form 

d)  all of these.

Ans-(d)

2)In which single phase motor, the rotor has no teeth or winding ?

a)  Split phase motor

b)  Reluctance motor

c)  Hysteresis motor

d)  Universal motor. 

Ans-(c)

iii)  In a synchronous motor, damper winding is provided in order to

a)  stabilize rotor motion 

b)  suppress rotor oscillation

c)  develope necessary starting torque 

d)  both (b) & (d).

Ans-(d)

iv)  The  frequency  of  voltage  generated  by  an  alternator having 4 poles and rotating at 1800 r.p.m. is

a)  60 Hz  b)  7200 Hz

c)  120 Hz d)  450 Hz.

Ans-(a)

v)  The winding of a 4-pole alternator having 36 slots and a coil span of 1 to 8 is shor pitched by

a)  140˚  b)  80˚

c)  20˚  d)  40˚.

Ans-(d)

vi)  For parallel operation, a.c. poly-phase alternator must have the same

a)  speed  b)  voltage rating

c)  KVA rating  d)  excitation.

Ans-(b)

vii)  The power factor of an alternator is determined by

a)  speed  b)  load

c)  excitation d)  prime mover. 

Ans-(b)

viii)  At lagging load, armature reaction in an alternator is

a)  cross-magnetizing  b)  demanetizing

c)  non-effective  d)  magnetizing.

Ans-(b)

ix)  A 3-phase induction motor, while supplying a constant load, has the fuse of one line suddenly blown off. The motor will run as a single phase induction motor with line current nearly increased to 

a)√3times    b)  3 times

c)  5 times  d)  6 times.

Ans-(a)

x)  A capacitor start and run single phase Induction motor is basically a

a)  single phase induction motor 

b)  two-phase induction motor

c)  three-phase induction motor 

d)  single phase reluctance motor.

Ans-(a)

xi)  The direction of rotation of a Single phase induction motor can be reversed  by

a)  reversing the leads of main winding 

b)  reversing the leads of auxiliary winding

c)  reversing the supply leads 

d)  reversing the leads of either main or auxiliary winding. 

Ans-(b)

Electrical Machine-II

Question-2011

MCQ

1)A 230 V dc series motor is connected to a 230 V ac supply.

a) The motor will vibrate violently 

b) The motor will run with less efficiency and more sparking

c) The motor will not run 

d) The fuse will be blown.

Ans-(b)

ii) In a poly-phase A.C. machine "short-pitching" of coils leads to

a) high terminal voltage b) higher efficiency

c) higher power factor  d) better induced emf.

Ans-

iii) When the main winding of a 1-phase induction motor is connected to 220 V, 50 Hz source, it takes a current of 50 L – 60˚A at standstill. Neglecting stator leakage impedance and magnetizing current, the rotor circuit parameters r 2 and x 2 in ohms are respectively

a) 2, 3·464 b) 3·464, 2

c) 4, 6·928 d) 6·928, 4.

Ans-(a)

iv) When a 3-phase synchronous motor is  running at synchronous speed, the damper winding produces

a) damping torque 

b) eddy current torque

c) torque aiding the developed torque

d) no torque.

Ans-(d)

v) Number of slip-rings required  in  a  conventional synchronous machine is

a) 0 b) 1

c) 2 d) 3.

Ans-(c)

vi) Induction generator runs at

a) supersynchronous speed

b) sub-synchronous speed

c) synchronous speed

d) none of these.

Ans-(b)

vii) In  a  salient  pole synchronous machine, where X d = d-axis synchronous reactance, Xq = quadrature axis synchronous reactance,

a) Xq= Xd

b) Xq> Xd

c) Xq< Xd

d) Xq= 0.

Ans-(c)

viii) The backward rotor slip in a single-phase induction motor is equal to

a) 1 – s b) s

c) 2 – s d) s/2.

Ans-(c)

ix) A synchronous motor is operating on no load at unity p.f. If  the field  current is  increased,  the p.f. will become

a) leading and current will decrease 

b) lagging and current will increase

c) lagging and current will decrease

d) leading and current will increase.

Ans-(a)

x) It is desirable to eliminate 5th harmonic voltage from the phase voltage of an alternator. The coils should be short pitched by an electrical angle of

a) 30˚ b) 36˚

c) 18˚ d) none of these.

Ans-(b)

xi) In brushless dc motor we have

a) no mechanical commutator

b) no brushes

c) no arcing

d) all of these.

Ans-

xii) If the prime mover of the alternator supplying load to an infinite bus is suddenly shut down, then it will

a) stop

b) continue to run as an alternator

c) continue to run as a synchronous motor in the reverse direction

d) continue to run as a synchronous motor in the same direction.

Ans-(d)

👉Electrical Machine-II (2014,2015,2016,2017,2018) Previous Year paper Download 

Electrical Machine-II

Question-2014

MCQ

i)) A capacitor start and run single phase induction motor is basically a

a) single phase induction motor b) two phase induction motor

c) three phase induction motor d) single phase reluctance motor

Ans-A

2) The direction of rotation of a single phase induction motor can be reversed by

a) reversing the leads of main winding

b) reversing the leads of auxiliary winding

c) reversing the supply leads

d) reversing the leads of with main or auxiliary winding

Ans-B

3) Usually the starting torque available in various split phase induction motors are the following ascending order

a) capacitor split resistor-reactor split, resistor split

b) resistor split, resistor-reactor split, capacitor split

c) resistor-reactor split, resistor split, capacitor split

d) resistor split, capacitor split, resistor-reactor split

Ans-B

4) Which one of the statements is true regarding speed and power factor of a single phase ac series motor?

a) both increase with increase in load torque

b) both decrease with increase in load torque

c) the former increases and the latter decreases with increase in load torque

d) the former decreases and the latter increases with increase in load torque

Ans-B

5) A compensating winding in a single phase series motor

a) reduces reactance drop and improves commutation

b) reduces reactance only

c) reduces reactance drop but retards commutation

d) improves commutation only

Ans-D

6) In a synchronous generator operating at zero power factor lagging, the effect of armature reaction is

a) magnetizing

b) demagnetizing c) cross magnetizing

d) both magnetizing and cross magnetizing

Ans-A

7) zero power factor characteristic for Potier diagram can be obtained by loading the alternator using

a) lamp load b) synchronous motor

c) water load d) dc motor

Ans-A

8) The max mum possible speeds in rpm at which an alternator can be driven to generates at 60Hz and 50Hz are respectively

a)2000, 2400

c) 2400, 2000

b) 3000, 3600

d) 3600, 3000

Ans-D

9) The power factor of an alternator under short circuit conditions is almost near

a) zero leading b) zero lagging c) unity

d) zero leading or zero lagging depending upon the type of alternator

Ans-A

10) Potier reactance of an alternator is almost the same as

a) field winding resistance b) total armature reactance

c) leakage reactance of field winding d) armature leakage reactance

Ans-D

11) A three phase synchronous generator is operating at constant load while the excitation is adjusted to give unity pf current. If the excitation is now increased, the pf will

a) become leading b) become lagging

c) remain at unity d) become zero

Ans-B

12) A three phase synchronous motor is operating on no load at unity power factor If the field current is now increased, the power factor and armature current will

a) leading and the current will decrease

b) lagging and the current will increase

c) lagging and the current will decrease

d) leading and the current will increase

Ans-A