- One or more conductors wound in a series of turns, so as to introduce inductance, or to produce a magnetic field in an electric circuit. A magnetic coil may be wound, for example, around a ferromagnetic core. Used, for instance, in transformers, electromagnets, solenoids, motors, loudspeakers, and so on. Also known as magnet coil, coil, inductor, inductance (3), inductance coil, or electric coil.
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