Electric Current

“The flow of charge in a definite direction constitutes the electric current and the time rate of flow of charge through any cross-section of a conductor is the measure of current”.

i.e., Electric Current

Current:- Current strength, in a conductor, is defined as the rate of flow of charge across any cross section of the conductor.

I= q/t = ne/t

For non-uniform flow,

I= dq/dt

Or, q = ? I dt

· Though the “electric current represents the direction of flow of positive charge”.

· Yet it is treated as a scalar quantity.

· Current follows, the laws of scalar addition and not the laws of vector addition.

· Because the angle between the wires carrying currents does not affect the total current in the circuit.