Define the unit of current.

The unit of current is Ampere. Ampere is denoted as A. 

Ampere

The SI unit of current is an ampere that measures the flow of electric charge across a surface at the rate of one coulomb per second.

An Ampere can be defined as the unit of electric current that is equal to the flow of one Coulomb per second. One ampere of current represents one coulomb of electrical charge, i.e. 6.24×1018 charge carriers, moving in one second.

1 Ampere = One Columb (C)/One second (S)

Since the charge is measured in coulombs and time in seconds, so the unit is coulomb/Sec (C/s) or amperes (A). Ampere is one of the SI base units for electric current. It is used in electronic and electrical science as well as other areas of science. The definition of ampere is based on the electromagnetic effect it induces.

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