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Electromagnetic induction

Electromagnetic induction
Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is

5 H
20 H
15 H
10 H

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Electromagnetic induction
A moving magnetic field will produce the same effect as a conductor that is moving.

True
False

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Electromagnetic induction
A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage?

0.5 s
0.1 s
0.2 s
None of the listed here

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Electromagnetic induction
In case of an inductance, current is proportional to

None of the listed here
Magnetic field
Both of the listed here
Voltage across the inductance

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Electromagnetic induction
Lenz's law is a consequence of the law of conservation of

Induced e.m.f.
Energy
Induced current
Charge

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Electromagnetic induction
Which of the following is unit of inductance?

Weber/metre
Ohm
Ampere turns
Hennry

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