Question

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

• A. Remains stationary
• B. Is attracted by the loop-A
• C. Is repelled by the loop-A​
• D. Rotates about its CM, with CM fixed (CM is the centre of mass)
  

Answer 1

The correct option is C Is repelled by the loop-A​

If the current increases with time in loop A, then magnetic flux in B will increase. According to Lenz's law, loop B is repelled by loop A.