A bar magnet falls freely, with its north pole pointing straight
down. It approaches and passes through a fixed, horizontally
orientated, metal ring.
a) How, if in any way, is the magnet's motion affected as it
approaches the ring?
b) How, if in any way, is the magnet's motion affected as it
leaves the ring?
Explain briefly with appropriate diagrams showing induced
currents and their magnetic effects.