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Electromagnetic induction

Electromagnetic induction
A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is

1000 ohms
100 ohms
5000 ohms
500 ohms

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Electromagnetic induction
The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as

Mutual inductance
Self-inductance
Series aiding inductance
Capacitance

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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

25 V
12 V
10 V
15 V

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

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

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

No
Yes

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Electromagnetic induction
The coefficient of coupling between two air core coils depends on

Self-inductance of two coils only
None of the listed here
Mutual inductance and self inductance of two coils
Mutual inductance between two coils only

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