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From The Collaborative International Dictionary of English v.0.44 [gcide]:
Voltage \Vol"tage\, noun (Elec.) Electric potential or potential difference, expressed in volts.
From WordNet (r) 2.0 [wn]:
voltage
noun
1: the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts [syn: {electromotive force}, {emf}]
2: the difference in electrical charge between two points in a circuit expressed in volts [syn: {electric potential}, {potential}, {potential difference}, {potential drop}]
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
voltage (Or "potential difference", "electro-motive force" (EMF)) A quantity measured as a signed difference between two points in an electrical circuit which, when divided by the {resistance} in {Ohms} between those points, gives the current flowing between those points in {Amperes}, according to {Ohm's Law}. Voltage is expressed as a signed number of Volts (V). The voltage gradient in Volts per metre is proportional to the force on a charge. Voltages are often given relative to "earth" or "ground" which is taken to be at zero Volts. A circuit's earth may or may not be electrically connected to the actual earth. The voltage between two points is also given by the charge present between those points in {Coulombs} divided by the {capacitance} in {Farads}. The capacitance in turn depends on the {dielectric constant} of the insulators present. Yet another law gives the voltage across a piece of circuit as its {inductance} in {Henries} multiplied by the rate of change of current flow through it in Amperes per second. A simple analogy likens voltage to the pressure of water in a pipe. Current is likened to the amount of water (charge) flowing per unit time. (1995-12-04)
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Definitions retrieved from local copies of the freely distributed DICT client/server software and databases. Click here for database copyright information. - KM |