...magnetic core, for introducing mutual coupling between circuits. Note: Transformers are extensively used in electric power systems to transfer power by...frequency, usually with changed values of voltage and current.'"1 Magnetic-core inductors and reactors are static devices containing one or more windings...

...parts, which by electromagnetic induction transforms electric energy from one circuit to another circuit at the same frequency, usually with changed values of voltage and current (amperes). transistor an active semiconductor device with three or more electrodes, usually a base,...