Question

in 1831, michael faraday performed an investigation during which a magnet moved through a wire coil. when the magnet was in motion, current was observed in the coil. which statement describes what his investigation demonstrated?
a moving magnetic force induces an electrical current.
electrons flow from a moving magnet into nearby conductors.
the magnetic field of a magnet is stronger when it is in motion.
a moving magnetic field transforms kinetic energy into electricity.

Explanation:

Faraday's experiment showed electromagnetic induction. A moving magnet (changing magnetic field) induces an electrical current in a conductor (the coil). Kinetic energy (of magnet's motion) is converted to electrical energy (current). The key is the induction of current by a moving magnet (changing magnetic flux).

Answer:

A moving magnetic force induces an electrical current.