# ampere

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Related to Amperes: resistance, voltage, Volts, Ampere's law

## ampere

(A) [am´pēr]
the base SI unit of electric current strength, defined in terms of the force of attraction between two parallel conductors carrying current.

## Am·père

(ahm'pēr),
André-Marie, French physicist, 1775-1836. See: ampere, statampere, Ampère postulate.

## am·pere (A),

(am'pēr),
1. The practical unit of electrical current; the absolute, practical ampere originally was defined as having the value of one tenth of the electromagnetic unit.
2. Legal definition: the current that, flowing for 1 second, will deposit 1.118 mg of silver from silver nitrate solution.
3. Scientific (SI) definition: the current that, if maintained in two straight parallel conductors of infinite length and of negligible circular cross-sections and placed 1 m apart in a vacuum, produces between them a force of 2 × 10-7 N/m of length.
[André-Marie Ampère]

## ampere

/am·pere/ (A) (am´pēr) the base SI unit of electric current strength, defined in terms of the force of attraction between two parallel conductors carrying current.

## ampere (A)

[am′pēr]
Etymology: André-Marie Ampère, French physicist, 1775-1836
a unit of measurement of the amount of electric current. An ampere, according to the meter-kilogram-second (MKS) system, is the amount of current passed through a resistance of 1 ohm by an electric potential of 1 volt; in the International System (SI) of Units, an ampere is a unit of electric current that carries a charge of 1 coulomb through a conductor in 1 second. The standard international ampere is the amount of current that deposits 0.001118 g of silver per second when passed, according to certain specifications, through a silver nitrate solution. See also ohm, volt, watt.

## am·pere

(A) (am'pēr)
1. The practical unit of electrical current; the absolute, practical ampere originally was defined as having the value of1/10 of the electromagnetic unit (see abampere and coulomb).
2. Legal definition: the current that, flowing for 1 second, will deposit 1.118 mg of silver from silver nitrate solution.
3. Scientific (SI) definition: the current that, if maintained in two straight parallel conductors of infinite length and of negligible circular cross-sections and placed 1 m apart in a vacuum, produces between them a force of 2 × 10-7 N/m of length.
[André-Marie Ampère]

## Ampère,

André-Marie, French physicist, 1775-1836.
ampere - the practical unit of electrical current.
Ampère postulate - Synonym(s): Avogadro law
statampere - the electrostatic unit of current, equal to 3.335641 X 10-10 ampere.

## am·pere

(A) (am'pēr)
1. The practical unit of electrical current.
2. Scientific (SI) definition: the current that, if maintained in two straight parallel conductors of infinite length and of negligible circular cross-sections and placed 1 m apart in a vacuum, produces between them a force of 2 × 10-7 N/m of length.
[André-Marie Ampère]

## ampere (am´pir),

n (Amp), a unit of measurement of the quantity of electric current, equal to a flow of 1 coulomb per second or 6.25 time 1018 electrons per second. The current produced by 1 volt acting through a resistance of 1 ohm.

## ampere

a unit of electric current strength, the current yielded by one volt of electromotive force against one ohm of resistance.
References in periodicals archive ?
Um Amer, who lives with her son, shares five amperes of electricity with another apartment.
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Households and businesses across the country pay up to \$100 per 5 amperes (1,100 watts) monthly to benefit from the services of these generators.
This step will encourage citizens to enter the electricity network and even raise their subscriptions from 5 amperes and 10 amperes to 15 amperes and even more without any extra charge," Bassil told reporters during a press conference.
Jin and his colleagues measured critical currents as high as 100,000 amperes per square centimeter.
The PG0200 inductors have a high current saturation capability up to 60 amperes (A).
The coils are chilled with liquid helium so that they can carry currents as large as 6,500 amperes without any energy loss.
The new device that has a current rating of 900 amperes, and housed in a hermetic 63 mm pressure contact package, is compatible with the pressure contact IGBT products, like the T0900TA52E.
The electrons, in pulses lasting up to two-millionths of a second and rated at thousands of amperes and millions of volts, race down a tube 3 feet wide and 184 feet long.
IXYS Corporation (NASDAQ: SYXI) announces the release of the improved IXBD4400 Half-Bridge Driver Chipset, a complete chipset for half-bridge driver applications with 2 Amperes drive current for applications up to 200kHz and a full range of voltages up to 575Vac.
Preliminary measurements show that typical fibers can withstand a pulsed current of at least 60,000 amperes per square centimeter at 68 kelvins before the fibers lose their superconducting properties.
Systems with advanced, high-speed microprocessors requiring on-board power at high current and low voltage can draw as much as 80 Amperes at up to 2.

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