A bar magnet is dropped through a vertical conducting ring. The magnet:

1. As the magnet approaches the ring, flux through the ring increases. 2. Lenz's law: induced current opposes the increase — equivalent to the ring repelling the magnet (or attracting it back). 3. So a magnetic drag force acts UPWARD on the falling magnet — it falls slower than g. 4. Energy 'missing' from KE shows up as ohmic heating in the ring. _Source: syllabus Physics Ch 6 §6.5 Lenz's Law (qualitative)_