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There are two coils A and B as shown in ...

There are two coils `A` and `B` as shown in Figure. A current starts flowing in `B` as shown, when `A` is moved towards `B` and stops when `A` stops moving. The current in `A` is counterclockwise. `B` is kept stationary when `A` moves. We can infer that

A

there is a constant current in the clockwise direction in A.

B

there is a varying current in A.

C

there is no current in A.

D

there is a constant current in the counter clockwise direction in A.

Text Solution

Verified by Experts

The correct Answer is:
D
When coil A moves towerds coil B with constant velocity, so rate of change of magnetic flux due to coil B in coil A will be constant that gives constant current in coil A in same direction as in coil B by Lenz.s law.
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