(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.
noun, Physics. 1. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x-rays, and gamma rays. noun 1. radiation consisting of self-sustaining oscillating electric and magnetic fields at right angles to each other and to the direction of propagation. It does not require a supporting medium and travels through empty space at […]