electromotive force
noun Electricity.
the energy available for conversion from nonelectric to electric form, or vice versa, per unit of charge passing through the source of the energy; the potential difference between the terminals of a source of electrical energy: expressed in volts. Abbreviation: emf
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Nearby words
electromerism, electrometallurgy, electrometeor, electrometer, electromotive, electromotive force, electromotive series, electromyogram, electromyograph, electromyography, electron
Origin of electromotive force
First recorded in 1825–35
Also called pressure.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for electromotive force
The fundamental “electromotive-force equation” of the heteropolar alternator can now be given a more definite form.
The electromotive-force equation of the alternator will be first deduced, and subsequently that of the continuous-current machine.
British Dictionary definitions for electromotive force
electromotive force
noun
physics
- a source of energy that can cause a current to flow in an electrical circuit or device
- the rate at which energy is drawn from this source when unit current flows through the circuit or device, measured in voltsAbbreviation: emf, EMF Symbol: E Compare potential difference
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Medicine definitions for electromotive force
electromotive force
[ ĭ-lĕk′trō-mō′tĭv ]
n.
The energy per unit charge that is reversibly converted from chemical or other forms of energy into electrical energy in a battery.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for electromotive force
electromotive force
Electric potential or voltage. Electromotive force is not really a force, but a measure of how much work would be done by moving an electric charge.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.