An electric current is the rate of flow of electric charges and it is measured in Ampere.
Find the electric current that flows through a conductor if a charge of 4.2 C flows through it in 2.1 seconds.
"The rate of flow of current in an electric circuit is called electric charge."
(a) What is an electric current? What makes an electric current flow in a wire? (b) Define the unit of electric current (or Define ampere).