Question

A copper ring is held horizontally and bar
magnet with its length along the axis of the
ring is dropped through the ring. The accel-
eration of the falling magnet is
(A) less than that due to gravity
(B) equal to that due to gravity
(C) more than that due to gravity
(D) depends on the length of the magnet and
diameter of the ring

Answer 1

Answer:

(A) less than that due to gravity

Explanation:

As the magnet falls the flux through the ring changes. Regardless whether the flux increases or decreases, by Lenz's law a current is induced in the ring that opposes the change in flux. This induced current induced a magnetic field that interacts with the falling magnet and decreases the acceleration of fall below g.

IF YOU LIKED MY ANSWER, MARK ME AS BRAINLIEST..