Electricity current may relate to charge by the definition: electric current is the time rate of flow of charge. In the form of an equation,
If the rate of flow of charge is variable, the instantaneous current is given by
The mks unit of current, called the ampere, is named in honor of Andre Marie Ampere (1775-1836), French physicist. The ampere is defined in electric current. It is equivalent to a rate of flow of charge of one coulomb per second.
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