How a Generator Works When an electric current flows through a wire, it generates a three-dimensional magnetic force field around the wire, similar to that surrounding a bar magnet. Magnets are ...

Slip rings maintain constant contact with the same sides of the coil As one side of the coil moves up through the magnetic field, a potential difference is induced (created) in one direction.

An important application of electromagnetic induction is the AC generator. This consists of a coil of wire rotating in a magnetic field and is used in power stations in the large-scale generation ...

Chinese scientists recently obtained the first information about the ancient magnetic field on the far side of the Moon, ...