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Electromagnetic induction

Electromagnetic induction
An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be

4 A/s
12 A/s
16 A/s
20 A/s

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

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

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Electromagnetic induction
Which of the following is not a unit of inductance?

Coulomb/volt ampere
All of the listed here
Hennry
Volt second per ampere

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Electromagnetic induction
Reversing the field or the current will reverse the force on the conductor.

Yes
No

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Electromagnetic induction
Mutually inductance between two magnetically coupled coils depends on

Permeability of the core
All of the listed here
The number of their turns
Cross-sectional area of their common core

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Electromagnetic induction
A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be

15 V
12 V
10 V
25 V

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