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. Abbreviations: emf, EMF, E.M.F., e.m.f.

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Also called pressure.

Origin of electromotive force

First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for electromotive force

British Dictionary definitions for electromotive force

electromotive force

noun

physics
  1. a source of energy that can cause a current to flow in an electrical circuit or device
  2. 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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for electromotive force

electromotive force
[ ĭ-lĕk′trō-mōtĭv ]

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.

Scientific 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.