Ampere meaning

ăm'pîr'
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.

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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 × 1018 electrons per second.
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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.
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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 2×10-7 newton per meter of length: abbrev. A or amp.
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1775-1836; Fr. physicist & mathematician.
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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 1018) electrons passing by the point of measurement in one second. See ampere-hour, volt and watt.
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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
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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)

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Origin of ampere

  • After André Marie Ampère
    From American Heritage Dictionary of the English Language, 5th Edition
  • Named after the French physicist André-Marie Ampère.
    From Wiktionary

Ampere Sentence Examples

  • A continuous electric current of one ampere is defined to be one which deposits electrolytically 0.001118 of a gramme of silver per second from a neutral solution of silver nitrate.'

  • being here - in a part of the city known as "Ampere") and pharmaceutical materials.

  • - Instruments of the third class depend for their action on the fact discovered by Ampere, that mechanical forces exist between conductors carrying electric currents when those conductors occupy certain relative positions.

  • So accurate and convenient is this determination that it is now used conversely as a practical definition of the ampere, which (defined theoretically in terms of magnetic force) is defined practically as the current which in one second deposits i '18 milligramme of silver.

  • The yield of copper per ampere (in round numbers, t oz.

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