ampere (A)

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 × 1018 electrons.The ampere is named for AndrÈ-Marie AmpËre (1775 1836), who first distinguished the difference between electrical current and voltage. See also current, sine wave, and voltage. 2. The steady flow of one volt (V) across a resistance of one ohm (Ω). 3. The unit of constant electrical current that, when maintained in

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