Q 12-06-075JEE MainJEE Main 2023 (10 Apr, Shift 2)Easy
A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will
Answer: (C) Move down with almost constant speed
Eddy currents induced in the copper tube oppose the fall with a force that grows with speed. The magnet soon reaches a terminal speed at which this force balances its weight, and then falls at almost constant speed.
Solution by Sreeraj P, M.Sc Physics