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electromotive force

electromotive 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. Electromotive force is usually measured in volts.

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electromotive force

electromotive force (emf) Potential difference between the terminals in a source of electric current, measured in volts. It equals the energy liberated when this voltage drives the current round an electric circuit. See also electricity

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"electromotive force." World Encyclopedia. . Encyclopedia.com. 22 Feb. 2018 <http://www.encyclopedia.com>.

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"electromotive force." World Encyclopedia. . Retrieved February 22, 2018 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/electromotive-force

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