A copper ring having a cut such as not to from a complete loop is held horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet is

Options

A. `g`
B. less than `g`
C. more than `g`
D. zero

Answer

A

Explanation

Though emf is induced in the copper ring. But there is no induced current because of cut in the ring. Hence, nothing opposes the free fall of the magnet. Therefore,, a=g.