*A*or

*amp*

Origin of ampere

after Ampère
noun

The definition of an ampere is the basic unit for measuring electricity.

The accepted standard unit used for measuring how fast an electric current flows is an example of an ampere.

YourDictionary definition and usage example. Copyright © 2018 by LoveToKnow Corp

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the basic unit of electric current intensity, equal, in the MKS system, to a rate of flow of charge in a conductor or conducting medium of one coulomb per second and, in the SI system, to a constant current that, if maintained in two straight parallel conductors of infinite length and negligible circular cross section placed one meter apart in a vacuum, would produce between these conductors a force equal to 2×10 newton per meter of length: abbrev. *A* or *amp*

Origin of ampere

after Ampère 1775-1836; Fr. physicist & mathematician

Webster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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ampere. (n.d.). Retrieved January 27th, 2019, from https://www.yourdictionary.com/AMPERE

noun

The basic unit of electric current, equal to one coulomb per second and equivalent to the current, flowing in two straight parallel wires of negligible cross section separated by a distance of one meter, that produces a force between the wires of 2.0 × 10^{−7} newtons per meter of length. The value of an ampere in the International System differs very slightly from that in the meter-kilogram-second-ampere system of units. measurement

Origin of ampere

AfterAndré MarieTHE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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ampere. (n.d.). Retrieved January 27th, 2019, from https://www.yourdictionary.com/AMPERE

The SI unit used to measure electric current. Electric current through any given cross-section (such as a cross-section of a wire) may be measured as the amount of electrical charge moving through that cross-section in one second. One ampere is equal to a flow of one coulomb per second, or a flow of 6.28 × 10^{18} electrons per second.

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Noun

(*plural* amperes)

- A unit of electrical current, the standard base unit in the International System of Units. Abbreviation: amp, Symbol: A
- Definition:
*The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10–7 newton per metre of length.*(The International Bureau of Weights and Measures)

- Definition:

Origin

Named after the French physicist André-Marie Ampère.

English Wiktionary. Available under CC-BY-SA license.

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Abbreviated amp. **1**.The unit of electric current equivalent to the flow of one coulomb of charge per second past any cross section at any point in a circuit, with a coulomb being 6.24

Webster's New World Telecom Dictionary Copyright © 2010 by Wiley Publishing, Inc., Indianapolis, Indiana.

Used by arrangement with John Wiley & Sons, Inc.

Used by arrangement with John Wiley & Sons, Inc.

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ampere. (n.d.). Retrieved January 27th, 2019, from https://www.yourdictionary.com/AMPERE

A measurement of electrical current in a circuit, commonly called an "amp." Contrast with "volts," which is a measure of force, or pressure, behind the current. Multiplying amps times volts derives "watts," the total measurement of power. In electrical equations such as Ohm's Law, the symbol for ampere is "I" (see ohm).
One ampere is 6,280,000,000,000,000,000 (6.28 x 10^{18}) electrons passing by the point of measurement in one second. See ampere-hour, volt and watt.

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- Neumann in 1845 did for electromagnetic induction what
**Ampere**did for electrodynamics, basing his researches upon the experimental laws of Lenz. - Turning to practical applications of electricity, we may note that electric telegraphy took its rise in 1820, beginning with a suggestion of
**Ampere**immediately after Oersted's discovery. - See Diderot's Prospectus (Muvres, iii.) and d'Alembert's Discours (Ouvres,i.) The scheme should be compared with later attempts of the same nature by
**Ampere**, Cournot, Comte and Herbert Spencer. - The yield of copper per
**ampere**(in round numbers, t oz. - Of copper per
**ampere**per diem) by Faraday's law is never attained in practice; and although 98% may with care be obtained, from 94 to 96% represents the more usual current-efficiency.

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