Question

Difference between electromotive force (emf) and potential difference

Answer 1

✌POTENTIAL DIFFERENCE : The amount of work done in moving a unit positive charge from one point to another point in an electric field is called potential difference. It is denoted by the letter V.

✌ ELECTROMOTIVE FORCE : The potential difference at the terminals of a cell in an open circuit is called electromotive force (emf).
It is denoted by the letter E.