electromotive force
- noun
- /ɪˌlɛktrəˈmoʊtɪv fɔrs/
- Specialized
:
fuerza electromotriz
- In a simple circuit, the electromotive force drives the current through the wires, enabling the light bulb to illuminate.
- generates the electromotive force
Examples
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Thermocouples, on the other hand, use two dissimilar wires to convert temperatures to an electromotive force that can be measured and converted to a thermal value.
Academic text (1994) -
A fixed magnet produces a current in the moving coil by an induced electromotive force in the coil.
Academic text (2005) -
The concentration of oxygen is then determined from the electromotive force produced by this process.
Academic text (1996) -
The passive circuit without an applied electromotive force or plugging it into the wall and wanting it to do things.
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The cell is a diode in which light generates the electromotive force.
Academic text (1993) -
The electromotive force may vary from region to region because of varying metal interconnection lengths between top- and bottom-surface features.
Academic text (1998) -
They work by using two dissimilar semiconducting materials along with a temperature difference to create an electromotive force, which then generates power.
Blog text (29) -
(b) A magnetomotive technique that measures the electromotive force generated when the metal layer on top of the resonator moves in the magnetic field B.
Academic text (2006) -
The battery generates an electromotive force that powers the electronic device, allowing it to function properly.
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Understanding the electromotive force is crucial for engineers designing efficient electrical systems.
Synonyms
70
4.0
The electric pressure that makes electricity move between two points
7
8.8
A voltage that a battery or generator gives to an electric circuit
Surface Forms
Morphology
The parts 'electromotive' (relating to generation of electric current) and 'force' (power) give a general hint that this is something that drives electricity, but they do not convey the precise technical meaning of voltage as energy per unit charge. Because the term is specialized and the word 'force' can mislead learners toward a mechanical interpretation, a B1 learner knowing the constituents would only partly infer the correct concept.
Etymology
Electromotive force uses a simple picture: electro means electric, motive means move, and force means a 'push'. Like a pump that pushes water through a pipe, this 'push' makes electric charge move in a wire, so the term means the energy or 'push' that makes current flow.