Question

A long copper tube is held vertically, a small bar magnet is released in copper tube, then the bar magnet moves with constant velocity why? ​

Answer 1

Answer:

If bar magnet is falling vertically through the hollow region of long vertical copper tube then the magnetic flux linked with the copper tube (due to 'non-uniform' magnetic field of magnet) changes and eddy currents are generated in the body of the tube by Lenz's law the eddy currents opposes the falling of the magnet ...