Electricity is the identity of modernity. It has really redefined the way of our life. Thus it has an important place in modern society. It is used almost at every place to facilitate modern activities.

**Electric Current**

Electric current is the rate at which charge passes by a point in the circuit. The magnitude of electric current in a conductor is the amount of electric charge passing through a given point of the conductor in one second.

The SI unit of current is ampere. A current of 1 ampere means that there is 1 coulomb of charge passing through a cross section of a wire in 1 second.

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