(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
Answer:
(d)Coil A must be
carrying a constant current in counter clockwise direction. That is why when A
moves towards B, current induced in B is in counter clockwise direction, as per
Lenz's law. The current in B would stop when A stops moving. Choice (d) is
correct.
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