A) there is a constant current in the clockwise direction of 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.
Correct Answer: D
Solution :
(d) there is a constant current in the counter-clockwise direction in A Coil A must be carrying a constant current in counter clockwise direction. Because of that, when A moves towards B, current induced in B is counter-clockwise direction as per Lenz's law. The current in B would stops when A steps moving.
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