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Inductors - Technical MCQs

Q1:

Faraday's law states that the:

A direction of the induced voltage produces an opposition

B direction of an induced current produces an aiding effect

C emf depends on the rate of cutting flux

D emf is related to the direction of the current

ANS:C - emf depends on the rate of cutting flux

Faraday's first law of electromagnetic induction states that:

Whenever a conductor is placed in a varying magnetic field, an electromotive force is induced. If the conductor circuit is closed, a current is induced which is called induced current.

Faraday's second law of electromagnetic induction states that:

The induced emf in a coil is equal to the rate of change of flux linkage. The flux is the product of the number of turns in the coil and the flux associated with the coil.