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The ampere (/ ˈ æ m p ɛər / AM-pair, US: / ˈ æ m p ɪər / AM-peer; symbol: A), often shortened to amp, is the unit of electric current in the International System of Units (SI). One ampere is equal to 1 coulomb (C) moving past a point per second. It is named after French mathematician and physicist André-Marie Ampère (1775–1836), considered the father of electromagnetism along with ...
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Ampere, unit of electric current in the International System of Units (SI), named for 19th-century French physicist Andre-Marie Ampere. It represents a flow of one coulomb of electricity per second. A flow of one ampere is produced in a resistance of one ohm by a potential difference of one volt.
Ampere Meter/Ammeter. Ampere meter, commonly known as Ammeter is an electrical instrument used to measure electrical current in Amperes. The electrical current on the load is measured with the help of an Ampere meter by connecting it in series to the load.
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The ampere is a basic unit of electric current, often called an "amp". It is a unit of electrical constant current of one ampere. The ampere is one of several electrical charge units used to measure the electromagnetic force between straight parallel conductors carrying electric current.
May 15, 2018 · The ampere (A), the SI base unit of electric current, is a familiar and indispensable quantity in everyday life. It is used to specify the flow of electricity in hair dryers (15 amps for an 1,800-watt model), extension cords (typically 1 to 20 amps), home circuit breakers (15 to 20 amps for a single line), arc welding (up to around 200 amps) and more.
AMPERE definition: the standard unit of measurement for the strength of an electric current. Learn more.
The definition of the SI unit of current, the ampere, comes from the study of magnetism. Electric currents in wires give rise to magnetic fields (Biot–Savart Law, 1820).
May 15, 2018 · André-Marie Ampère The story of the ampere began when a Danish physicist named Hans Christian Ørsted discovered that magnetism and electricity were two aspects of the same thing. In 1820, he showed that you could make a compass needle deflect from north by putting it near an electric current. As Ørsted discovered, current in a wire produces a magnetic field that encircles the wire and ...
