Question

when is the terminal voltage across a cell is more than its e.m.f???

Answer 1

Answer:

The e.m.f of a cell is always greater than it's terminal voltage because e.m.f is the potential difference across the two terminals when it is not connected to any circuit, And Of this connects to the circuit the voltage automatically gets reduced because of the internal resistance.

Answer 2

The emf of a cell is greater than its terminal voltage because there is some potential drop across the cell due to its small internal resistance.