Current is the rate of flow of charge across a cross-section normal to the direction of flow of current. It is a scalar quantity. Its SI unit is ampere (A).

Current is one ampere if the rate of flow of charge is one coulomb per second. If n electrons pass through the cross-section of a conductor in time t, then the total charge passed through the conductor is given as Q = ne, and current in the conductor is given as I = Q/t = ne/t

## Current Electricity PDF

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