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emf:see electromotive forceelectromotive force,
abbr. emf, difference in electric potential, or voltage, between the terminals of a source of electricity, e.g., a battery from which no current is being drawn. When current is drawn, the potential difference drops below the emf value.
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The force which causes (or tends to cause) the movement of electricity in a conductor; the difference in potential between the terminals of an electric source.
EMF(1) (Enhanced MetaFile) See Windows metafile.
(2) (ElectroMagnetic Field) An area of electrical or magnetic radiation. See electromagnetic radiation.
(3) (ElectroMotive Force) Electrical energy measured in volts.