Two identical circular loops of metal wire are lying on a table without touching each other. Loop-A carries a current which increases with time. In response, the loop-B

Options

A. It rotates about its centre of mass, with CM fixed
B. It is repelled by the loop A
C. It is attracted by the loop A
D. It remains stationary

Answer

B

Explanation

When the current in the loop A increases with time, the magnetic flux in B will start increasing and as per Lenz's law the loop B is repelled by the loop A.