A small circular loop is suspended from an insulating thread. Another coaxial circular loop carrying a current I and having radius much larger than the first loop starts moving towards the smaller loop. The smaller loop will :

Options

A. Be attracted towards the bigger loop
B. Be repelled by the bigger loop
C. Experience no force
D. All of the above

Answer

B

Explanation

By Lenz's law, induced effects always oppose the cause of induction. So when the first loop is moves towards the smaller loop it will be repelled by the induced current in the loop.