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What is mA in electricity?

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Quick Answer

The abbreviation "mA" denotes the International System unit for electrical current known as the milliampere. One milliampere is equal to one-thousandth of an ampere. The unit is named for the 18th and 19th century French physicist Andre-Marie Ampere, who studied electromagnetism.

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Full Answer

The SI unit was adopted in 1948 as the measure of constant electrical current, at the rate of one coulomb of electricity per second. This naming recognized the extensive work of Ampere, who founded the field of study of electrodynamics at the turn of the 18th century. This led to the modern study of electromagnetism. He discovered that parallel and non-parallel currents had different magnetic properties.

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