Question

A bar magnet falls from a height 'h' through a metal ring. Will its acceleration be equal to g? Give reasons for your answer.

Answer 1

As from Question

As the magnet falls, the magnetic flux linked with the ring changes. This sets up an induced emf and a hence an induced current in the ring. The direction of an induced current is so as to oppose the downward motion of the magnet. Hence, the acceleration of the falling magnet is less than that due to gravity.