A magnetic brake, often referred to as an electric brake, an induction brake, or an electric retarder, is a tool used to slow down or stop moving objects by creating eddy currents that release the kinetic energy of the item as heat. The drag force in an eddy current brake is an electromagnetic force between a magnet and a nearby conductive object in relative motion, due to eddy currents induced in the conductor through electromagnetic induction, as opposed to friction brakes, which use friction between two surfaces that are pressed together to stop the moving object.
