an electrical device used to introduce reactance into a circuit

coil in which voltage is induced by motion through a magnetic field

an arrangement of coils used in sensitive electrical instruments; the coils are arranged to give zero resultant external magnetic field when a current passes through them and to have zero electromotive force induced in them by an external magnetic field

a coil of low resistance and high inductance used in electrical circuits to pass direct current and attenuate alternating current

the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine

a coil for producing a high voltage from a low-voltage source