6 articles
Eddy current
An eddy current, also called a Foucault current, is a loop of current induced within a conductor by a changing magnetic field, flowing in closed loops perpendicular to the field.
Induction heating
Induction heating, also known as inductive heating or eddy-current heating, heats a conductive object by inducing currents within it using a nearby alternating-current coil, and is used for furnaces, surface hardening, and cooktops.
Magnetic damping
Magnetic damping is the suppression of motion in an electrically conducting fluid, typically liquid metal, by a static magnetic field, best known as the electromagnetic brake in continuous steel casting.
Proximity effect (electromagnetism)
The proximity effect is the redistribution of alternating current in a conductor caused by the time-varying magnetic field of a neighboring conductor, increasing effective AC resistance.
Skin depth
Skin depth is the depth at which an oscillating electromagnetic field or alternating current in a conductor decays to 1/e, about 37 percent, of its surface value.
Skin effect
The skin effect is the tendency of alternating electric current to flow mostly in a conductor's outer layer, growing with frequency and raising the effective AC resistance above its DC resistance.