Faraday’s Law, Alternating Current, and Maxwell’s Equations

Experimentally, M. Faraday and J. Henry show that a changing magnetic field can establish a current in a circuit that has no battery. When we move a magnet toward a stationary loop that is connected to a galvanometer, the galvanometer’s needle deflects in one direction. When the magnet stops, no deflection is observed. Now, when we move the magnet away from the loop, the needle deflects in the opposite direction.