Definitions for electromotive force
elec·tro·mo·tive force

Princeton's WordNetRate this definition:0.0 / 0 votes

1. voltage, electromotive force, emfnoun

   the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

WiktionaryRate this definition:0.0 / 0 votes

1. electromotive forcenoun

   Potential energy (NOT force) divided by electric charge; measured in volts

WikipediaRate this definition:0.0 / 0 votes

1. Electromotive force

   In electromagnetism and electronics, electromotive force (also electromotance, abbreviated emf, denoted E {\displaystyle {\mathcal {E}}} or ξ {\displaystyle {\xi }} ) is an energy transfer to an electric circuit per unit of electric charge, measured in volts. Devices called electrical transducers provide an emf by converting other forms of energy into electrical energy. Other electrical equipment also produce an emf, such as batteries, which convert chemical energy, and generators, which convert mechanical energy. This energy conversion is achieved by physical forces applying physical work on electric charges. However, electromotive force itself is not a physical force, and ISO/IEC standards have deprecated the term in favor of source voltage or source tension instead (denoted U s {\displaystyle U_{s}} ).An electronic–hydraulic analogy may view emf as the mechanical work done to water by a pump, which results in a pressure difference (analogous to voltage).In electromagnetic induction, emf can be defined around a closed loop of a conductor as the electromagnetic work that would be done on an elementary electric charge (such as an electron) if it travels once around the loop.For two-terminal devices modeled as a Thévenin equivalent circuit, an equivalent emf can be measured as the open-circuit voltage between the two terminals. This emf can drive an electric current if an external circuit is attached to the terminals, in which case the device becomes the voltage source of that circuit. Although an emf gives rise to a voltage and can be measured as a voltage and may sometimes informally be called a "voltage", they are not the same phenomenon (see § Distinction with potential difference).

ChatGPTRate this definition:0.0 / 0 votes

1. electromotive force

   Electromotive force, often abbreviated as emf, is the energy provided by a source of electrical energy such as a battery or a generator to move electrons and produce an electric current. It is the voltage generated by a source in an electrical circuit and is usually measured in volts. Despite its name, it is not actually a force, but it drives the flow of electric charge to create electrical power.

WikidataRate this definition:0.0 / 0 votes

1. Electromotive force

   Electromotive force, also called emf, refers to voltage generated by a battery or by the magnetic force according to Faraday's Law, which states that a time varying magnetic field will induce an electric current. The electromotive "force" is not a force, as force is measured in newtons, but a potential, or energy per unit of charge, measured in volts. In electromagnetic induction, emf can be defined around a closed loop as the electromagnetic work that would be transferred to a unit of charge if it travels once around that loop. For a time-varying magnetic flux impinging a loop, the electric potential scalar field is not defined due to circulating electric vector field, but nevertheless an emf does work that can be measured as a virtual electric potential around that loop. In a two-terminal device, the emf can be measured as voltage across the two open-circuited terminals. The created electrical potential difference drives current flow if a circuit is attached to the source of emf. When current flows, however, the voltage across the terminals of the source of emf is no longer the open-circuit value, due to voltage drops inside the device due to its internal resistance.

Matched Categories

1. • Electrical Phenomenon

How to pronounce electromotive force?

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How to say electromotive force in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of electromotive force in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of electromotive force in Pythagorean Numerology is: 2

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=electromotive force
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Electromotive_Force
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Electromotive_Force
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=electromotive force