CBSE Class 12 Physics Notes Chapter 3 Current Electricity
Current is referred to the passing of charge through an area per unit time. For the maintenance of a steady flow of current, it is to be ensured that the circuit is closed and the electric charge is influenced by an external source which moves them from a lower to higher potential energy. The work done to per unit charge to move the charge is known as electromotive force or emf. Please refer Current Electricity Class 12 Notes for more revision notes.
CBSE Revision Notes 