ampere

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am·pere

 (ăm′pîr′)
n. Abbr. A
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. See Table at measurement.

[After André Marie Ampère.]

Ampère

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

ampere

(ˈæmpɛə)
n
1. (Units) 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. (Units) 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
Abbreviation: amp Symbol: A
[C19: named after André Marie Ampère]

am•pere

(ˈæm pɪər, æmˈpɪər)

n.
the SI unit of electrical current, equal to a constant current that would produce a force of 2 x 10−7 newton per meter of length when maintained in two straight parallel conductors of infinite length and negligible circular cross section and placed one meter apart in a vacuum. Abbr.: A, amp.
[1881; after A. M. Ampère]

Am•père

(ˈæm pɪər, æmˈpɪər, Fr. ɑ̃ˈpɛr)

n.
André Marie, 1775–1836, French physicist.

am·pere

(ăm′pîr′)
A unit used to measure electric current. Electric current is measured by how great a charge passes a given point in a second. One ampere is equal to a flow of one coulomb per second.

ampere

1. The unit of electric current in the international system.
2. (A) The unit for measuring electric current.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ampere - a former unit of electric current (slightly smaller than the SI ampere)ampere - a former unit of electric current (slightly smaller than the SI ampere)
current unit - a measure of the amount of electric charge flowing past a circuit point at a specific time
2.ampere - the basic unit of electric current adopted under the Systeme International d'Unitesampere - the basic unit of electric current adopted under the Systeme International d'Unites; "a typical household circuit carries 15 to 50 amps"
current unit - a measure of the amount of electric charge flowing past a circuit point at a specific time
milliampere, mA - one thousandth of an ampere
abamp, abampere - a unit of current equal to 10 amperes
Translations
ampér
ampere
amper
ampeeri
amper
amper
amper
アンペア
amper
ampér
amper
ampere

ampere

ampère [ˈæmpɛəʳ]
A. Namperio m
B. CPD ampere-hour Namperio-hora m

ampere

ampère [ˈæmpɛər] (British) nampère m

ampère

(ˈӕmpeə) noun
(also amp (ӕmp) ) (often abbreviated to A when written) the unit by which an electric current is measured.
References in periodicals archive ?
To provide a link between various instrument responses and ambient concentrations, we also converted the picoamp and femtoamp outputs to estimated nanograms per cubic meter based on the manufacturer's recommended conversion factors and included the conversion in Table 3.
These high-speed amplifiers feature CMOS input and offer the key specifications required for superior performance and signal conditioning accuracy, including low-input noise density of 9 nV/sqrt Hz, guaranteed low offset voltage of less than 200 uV and a guaranteed low input bias current of less than 1 picoamp (pA).
These applications also benefit from the in-amp's 6 nanoamp shutdown current and 40 picoamp bias current.