If you drop a bar magnet in a vertical copper pipe it will fall slowly because
A. 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:B
If you drop a bar magnet in a vertical copper pipe it will fall slowly because
A. 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.