the induction of an electromotive force by the motion of a conductor across a magnetic field or by a change in magnetic flux in a magnetic field.
Production of an electric current by changing the magnetic field enclosed by an electrical circuit. The most common use of electromagnetic induction is in the electric generator.
- Electromagnetic interaction
noun 1. (physics) an interaction between charged particles arising from their electric and magnetic fields; its strength is about 100 times weaker than the strong interaction See interaction (sense 2), electroweak interaction
- Electromagnetic moment
noun 1. a measure of the magnetic strength of a magnet or current-carrying coil, expressed as the torque produced when the magnet or coil is set with its axis perpendicular to unit magnetic flux density. It is measured in ampere metres squared m Also called magnetic moment Compare magnetic dipole moment
noun 1. a device that causes an electrically conducting fluid to flow by means of electromagnetic induction. noun 1. a device for pumping liquid metals by placing a pipe between the poles of an electromagnet and passing a current through the liquid metal
noun 1. . electromagnetic pulse A pulse of intense electromagnetic radiation generated by certain physical events, especially by a nuclear explosion. The pulse includes a continuous spectrum of low frequencies and can interfere with the operation of electrical equipment.