electromotive force(redirected from E.m.f.)
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n. Abbr. EMF
The energy per unit charge that is converted reversibly from chemical, mechanical, or other forms of energy into electrical energy in a battery or dynamo.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(General Physics) physics
a. a source of energy that can cause a current to flow in an electrical circuit or device
b. the rate at which energy is drawn from this source when unit current flows through the circuit or device, measured in volts. Abbreviation: emf or EMF Symbol: E Compare potential difference
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
the energy available for conversion from nonelectric to electric form, or vice versa, per unit of charge passing through the source; the potential difference between the terminals of a source of electrical energy: expressed in volts. Abbr.: emf
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
1. The force that makes electrons move to produce an electric current. Electromotive force is supplied by a power source, such as a battery or dynamo. It is measured in volts.
2. The difference in the potential energies of a cathode and anode immersed in the same solution of electrolytes or connected in another manner.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||electromotive force - the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts|
electrical phenomenon - a physical phenomenon involving electricity
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
electromotive forcen (Phys) → forza elettromotrice
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995