Question

What is electric current? Write its SI unit.

Answer 1

Definition of electric current-

1. The rate of flow of electric charge is known as electric current.
2. Electric current can flow through the conductors only.
3. The value of the electric current depends on the number of free electrons present in the conductor per unit volume of it.
4. $$\begin{gathered} Electriccurrent=\frac{Flowingcharge}{time} \\ I=\frac{Q}{t} \end{gathered}$$

S.I unit of electric current-

1. The SI unit of electric current is ‘Ampere’.
2. Ampere is represented by ‘A’.