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:

Question

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: <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/p-trowpwk7f8opt4xs.jpg" /> (A) Be attracted towards the bigger loop (B) Be repelled by the bigger loop (C) Experience no force (D) All of the above

Tardigrade Admin · Accepted Answer

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.

Q. 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 :

Be attracted towards the bigger loop

Be repelled by the bigger loop

Experience no force

All of the above

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.