First slide

Magnetic flux and induced emf

Question

A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then

Moderate

A

A current will be induced in a coil
B

No current will be induced in a coil
C

Only an e.m.f. will be induced in the coil
D

An e.m.f. and a current both will be induced in the coil

Solution

Because there is no change in flux linked with coil

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