Ampere

Pronunciation

• Hyphenation: am + pere

Alternative forms

• ampère, amp, A

Origin

Named after the French physicist André-Marie Ampère.

Full definition of ampere

Noun

1. A unit of electrical current, the standard base unit in the International System of Units. Abbreviation: amp, Symbol: ADefinition: 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)

Derived terms

• abampere
• exaampere
• milliamp
• microamp
• nanoamp
• picoamp