Induction Heating Coil

An induction coil consists of a central cylindrical core of soft iron on which are wound two insulated coils: an inner or primary coil, having relatively few turns of copper wire, and a surrounding secondary coil, having a large number of turns of thinner copper wire.The induction heating coil is specifically shaped copper tubing or other conductive material which alternating electrical current is passed through, creating a variable magnetic field.