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Electromagnetic induction

Electromagnetic induction
A crack in the magnetic path of an inductor will result in

Increased inductance
Zero inductance
Reduced inductance
Unchanged inductance

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

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

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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

Series aiding inductance
Capacitance
Mutual inductance
Self-inductance

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Electromagnetic induction
Increasing the field or increasing the current will decrease the force on the conductor.

No
Yes

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Electromagnetic induction
A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be

12 mH
24 mH
48 mH
6 mH

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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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MORE MCQ ON Electromagnetic induction

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