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Electromagnetic induction

Electromagnetic induction
Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be

Quadrupled
Unaffected
Doubled
Halved

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Electromagnetic induction
Which of the following circuit elements will oppose the change in circuit current?

Resistance
Capacitance
Inductance
All of the listed here

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

False
True

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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
10 V
12 V
25 V

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Electromagnetic induction
Which of the following is unit of inductance?

Weber/metre
Hennry
Ohm
Ampere turns

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Electromagnetic induction
Which of the following circuit element stores energy in the electromagnetic field?

Condenser
Resistance
Variable resistor
Inductance

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MORE MCQ ON Electromagnetic induction

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