[am-peer, am-peer]
/ˈæm pɪər, æmˈpɪər/

1.

the basic unit of electrical current in the International System of Units (SI), equivalent to one coulomb per second, formally defined to be the constant current which if maintained in two straight parallel conductors of infinite length, of negligible circular cross section, and placed one meter apart in vacuum, would produce between these conductors a force equal to 2 × 10 ^{−7} newton per meter of length.

Abbreviation: A, amp.

Origin of ampere

British Dictionary definitions for ampere

/ˈæmpɛə/

noun

1.

the basic SI unit of electric current; the constant current that, when maintained in two parallel conductors of infinite length and negligible cross section placed 1 metre apart in free space, produces a force of 2 × 10–7 newton per metre between them. 1 ampere is equivalent to 1 coulomb per second

2.

a former unit of electric current (international ampere); the current that, when passed through a solution of silver nitrate, deposits silver at the rate of 0.001118 gram per second. 1 international ampere equals 0.999835 ampere

amp, A

Word Origin

C19: named after André Marie Ampère

/ˈæmpɛə; French ɑ̃pɛr/

1.

André Marie (ɑ̃dre mari). 1775–1836, French physicist and mathematician, who made major discoveries in the fields of magnetism and electricity

Word Origin and History for ampere

n.

1881, "the current that one volt can send through one ohm," from French ampère, named for French physicist André-Marie Ampère (1775-1836). Shortened form amp is attested from 1886.

ampere in Medicine

**ampere** am·pere (ām'pēr')*n.* * Abbr. ***A**

A unit of electric current in the meter-kilogram-second system, equal to the current that, flowing in two parallel wires one meter apart, produces a force of 2 × 10-

^{7}newtons per meter.A unit in the International System specified as one International coulomb per second and equal to 0.999835 ampere.

ampere in Science

ampere in Technology

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Scrabble
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