Question

A copper ring with incomplete loop is held horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring. What is the accleration of the falling magnet ?

• A. g
• B. less than g
• C. more than g
• D. 0

Answer 1

The correct option is A g

Since loop is not complete, there will not be any current in the loop which would oppose the change in flux and therefore opposes the fall of magnet.

Hence, only gravity will act on the magnet and it will fall with acceleration $g$.

Answer-(A)