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| Question |
A coil consisting of 200 turns of wire has its ends
connected to a circuit such that the total resistance of
the coil and the circuit is 2.0 ohm. There is no source of
e.m.f. in the circuit. Each turn of the coil is a square of
side 18 cm, and a uniform magnetic field directed
perpendicular to the plane of the coil is turned on. If the
field changes linearly from 0 to 0.5 T in 0.8 s, what is
the magnitude of the current in the coil while the field is
changing? |
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Answer Posted By |
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Question Submitted By :: Ravinder Singh |
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I also faced this Question!! |
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| Answer | emf induced in the coil e=-(d$/dt)=-NA(dB/dt)
=200*(18/100)*(18/100)*((0.5-0)/(0.8))
=4.05 volts
induced current in the coil=induced emf/resistanc
=4.05/2=2.025 A  |
| Mahesh
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| Question |
name of the ten satellite launched from india and year of
launch. |
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Answer Posted By |
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Question Submitted By :: Santhosh |
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| Answer | 1. Aryabhata(1975)
2. Bhaskara-I(1979)
3. Bhaskara-II(1981)
4. APPLE(1981)
5. Rohini(1980)
6. IRS(1980)
7. INSAT(1982)
8. INSAT-2B(1993)
9. INSAT-2C(1995)
10.GSAT-I(2001)
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| Shreya
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| Question |
graph between frequency of photon and velocity of photo
elrectron? |
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Answer Posted By |
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Question Submitted By :: Heena Saxena |
| This Interview Question Asked @ IIT |
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I also faced this Question!! |
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| Answer | Graph is a straight line |
| Muhammad Zubair
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| Answer | It is a sright line (at velocity 3E-8 m/s) parallel to the
frequency axis. |
| Daniel
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| Question |
a car is travelling at 72kmph, and if that car slows down
to 60kmph it takes an extra 1 hour to cover that same
distance. at 72kmph, how long did it take for the car to
cover that distance? |
Rank |
Answer Posted By |
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Question Submitted By :: Dihan |
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| Answer | 10 mins |
| Ashish
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| Question |
what is the proper defination of 'LIGHT' |
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Answer Posted By |
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Question Submitted By :: Gaurav Bansal |
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I also faced this Question!! |
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| Answer | light is a form of energy that affects the eyes to produce
the sensation of vision. |
| Priyuuuu
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| Answer | Light is a form of energy called electromagnetic radiation,
which travels as invisible waves. |
| Shreya
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| Question |
how does a basic rubber ink filler work? |
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Answer Posted By |
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Question Submitted By :: Hema |
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I also faced this Question!! |
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| Answer | first we press the ink filler it takes out the air. then we
release the filler there is some vaccum is created. so ink
is filled that vaccum space. |
| Praveen
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