Answer: damping and heating.
- A damping and heating
- B acceleration of the plate
- C charge storage
- D no observable effect
Correct answer: A. damping and heating
Explanation: Eddy currents dissipate energy as heat and oppose the motion, producing electromagnetic damping.
As a magnet approaches a coil, flux rises steadily and a constant non-zero EMF is induced (Faraday's law). Once the magnet stops moving, flux stays constant and the induced EMF drops to zero - EMF only exists while flux is actively changing.
Concept context
Faraday's and Lenz's laws, motional EMF, self/mutual inductance, eddy currents, and the AC generator - how a changing magnetic flux creates an electric current.