Question

If you drop a bar magnet in a vertical copper pipe it will fall slowly becauseA) of air resistance.B) it induces a magnetic field in the pipe that resists motion of the magnet.C) the copper is a good conductor of both electricity and magnetism.D) of electron repulsion.

Answer 1

If you drop a bar magnet in a vertical copper pipe it will fall slowly because it induces a magnetic field in the pipe that resist motion of the magnet.

Currents are created by conducting metal like copper. These conducting currents generate their own magnetic field. The magnetic field created by the copper resists the magnetic field created by the magnet thereby causing a slow downward movement of the magnet. This simply implies the magnet will induce the magnet field in the pipe that resists the motion of the magnet.

B.