Question

A copper ring is cut in such away, that there is a small gap between the two ends and it does not form a closed loop. This ring is kept horizontally and a bar magnet is dropped vertically through the ring, in such a way that its length is along the axis of the ring. The magnet falls with an acceleration which

• A. is equal to g
• B. is more than g
• C. is less than g
• D. depends upon the width of the gap

Answer 1

The correct option is A is equal to g

Given: A copper ring is cut in such away, that there is a small gap between the two ends and it does not form a closed loop. This ring is kept horizontally and a bar magnet is dropped vertically through the ring, in such a way that its length is along the axis of the ring. The magnet falls with an acceleration which

Solution:

Since there is gap between the ring so no emf would be induced as a result there would be no change in acceleration of magnet.

The correct opt : A