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The variation of induced emf (E) with ti...

The variation of induced emf `(E)` with time `(t)` in a coil if a short bar magnet is moved along its axis with a constant velocity is best represent as

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B
As the bar magnet moves towards the coil the induced emf `e=-dphi//dt` is negative and as it moves away, the induced emf is positive. Hence the correct choice `(B)`.
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