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

## ampere

*A*or

*amp*

Origin of ampere

after Ampère## ampere

noun

*Abbr.*

**A**

^{−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. See Table at measurement.

Origin of ampere

After André Marie**Ampère**.

## ampere

(*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:

Named after the French physicist André-Marie Ampère.

## ampere - Computer Definition

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

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.