Question

Electric current is defined as the _______ per unit time.

Answer 1

1. If a charge 'q' flows across any cross-section in 't' second, current i is given by $i=\frac{q}{t}$
2. Current is the rate of flow of charge.
3. The unit of current is ampere which is equivalent to coulomb per second.

Hence, electric current is defined as the charge per unit time.