AMMETER

Ammeter

An ammeter is a measuring instrument used to measure the electric current in a circuit. Electric currents are measured in amperes, hence the name. Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Early ammeters were laboratory instruments which relied on the Earth's magnetic field for operation. By the late 19th century, improved instruments were designed which could be mounted in any position and allowed accurate measurements in electric power systems.

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ammeter

Noun

  1. A device that measures the magnitude of an electric current, especially one calibrated in amperes.


The above text is a snippet from Wiktionary: ammeter
and as such is available under the Creative Commons Attribution/Share-Alike License.

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