volt

(redirected from Volts)
Also found in: Dictionary, Thesaurus, Medical, Acronyms.
Related to Volts: ampere, voltage, Electron volts

volt

[for Alessandro VoltaVolta, Alessandro, Conte
, 1745–1827, Italian physicist. He was professor of physics at the Univ. of Pavia from 1779 and became famous for his work in electricity. Napoleon I made him a count and a senator of the kingdom of Lombardy.
..... Click the link for more information.
], abbr. V, unit of electric potentialpotential, electric,
work per unit of electric charge expended in moving a charged body from a reference point to any given point in an electric field (see electrostatics).
..... Click the link for more information.
 and electromotive forceelectromotive force,
abbr. emf, difference in electric potential, or voltage, between the terminals of a source of electricity, e.g., a battery from which no current is being drawn. When current is drawn, the potential difference drops below the emf value.
..... Click the link for more information.
. It is defined as the difference of electric potential existing across the ends of a conductor carrying a constant current of 1 ampere when the power dissipated is 1 watt. The kilovolt (1,000 V), the millivolt (0.001 V), and the microvolt (0.000001 V) are units derived from the volt. See voltmetervoltmeter,
instrument used to measure differences of electric potential, commonly called voltage, in volts or units that are multiples or fractions of volts. A voltmeter is usually combined with an ammeter and an ohmmeter in a multipurpose instrument.
..... Click the link for more information.
.

Volt

 

a unit of electrical voltage, electrical potential difference, and electromotive force (emf), which is included in the International System of Units. It is named after the Italian scientist A. Volta and is designated by the letter V. It was adopted at the First International Congress of Electricians in 1881 as a practical unit of emf equal to 108 units in the cgs system of units. From 1893 to 1948 the international volt (Vint) was used. It was equal to the voltage or emf which in a conductor having a resistance of 1 Oint produced a current of 1 Aint. An accurate value was established for the international volt by a standard consisting of a group of normal Weston cells. With the change in 1948 to the system of absolute practical electrical units, the volt (Vabs) became a derived unit which is used in the International System of Units: 1 V is the electrical voltage that in an electrical circuit produces a direct current of 1 ampere when dissipating a power of 1 watt.

The unit for potential difference in the cgs electrostatic system and the cgs system is equal to 300 Vabs (more accurately 10-8·c V, where c is the numerical value of the velocity of light in a vacuum expressed in cm/sec). 1 Vint = 1.00035 Vabs.

volt

[vōlt]
(electricity)
The unit of potential difference or electromotive force in the meter-kilogram-second system, equal to the potential difference between two points for which 1 coulomb of electricity will do 1 joule of work in going from one point to the other. Symbolized V.

volt

In electric systems the unit of potential difference or electromotive force; when applied across a resistance of 1 ohm, will result in a current flow of 1 ampere.

volt

1
the derived SI unit of electric potential; the potential difference between two points on a conductor carrying a current of 1 ampere, when the power dissipated between these points is 1 watt.

volt

2, volte
1. a small circle of determined size executed in dressage
2. a leap made in fencing to avoid an opponent's thrust

volt

A unit of measurement of force, or pressure, in an electrical circuit. The common voltage of an AC power line is 120 volts of alternating current (alternating directions). Common voltages within a computer are from 3 to 12 volts of direct current (one direction only). See voltage and volt-amps.
References in periodicals archive ?
So, the two batteries in the example above will now provide 300 amp-hrs at 6 volts.
From understanding electrical circuits, to designing and operating your own 12 volt system, to troubleshooting, it's all here.
HBC Fuse link 200 amp 415 Volts breaking capacity 80 KA.
For topics that lack a published threat module, DIA has identified approved alternate sources for use in VOLTs.
Most gasoline-driven plants had no voltage or current control, but depended on the charge/discharged condition of the battery (16 cells, 2 volts each in series).
The magician emerged shortly before 9pm Monday after spending three days and three nights standing in the middle of 1 million volts of electric currents at New York's Pier 54.
Lutz then goes on to explain the $49,000 figure was calculated by Reuters after dividing the total cost of the research and development expenditures and dividing them among all Volts sold so far.
GM spokesman, Randal Fox, stated that the exchange affects all 2011 model plug-in electric hybrid Volts, and certain 2012 models.
Charge them to 12.85 volts. Some older batteries may only recharge to 12.65 volts, but still have great amperage rating.
A six-month grace period starting in December will begin the process, so that by June 2012 any electrical appliance running on less than 127 volts will be banned from the market.
Parts for electrical appliances of 127 volts would continue to be permitted in the market for 15 years, he added.
Small numbers of Leafs and Volts have been available in select dealerships since December.