Question

Write four points of difference between e.m.f. (Electromotive Force) and Potential difference.

Answer 1

Differences between e.m.f. and Potential difference:

SL No	Electromotive Force (e.m.f.)	Potential difference
1	e.m.f. exists after circuit is broken.	Does not exist after circuit is broken.
2	e.m.f. does not depend on resistance of circuits.	Potential difference depends on resistance the between points
3	It is greater than terminal voltage of the cell in closed circuit.	It is always less than e.m.f. of the cell used.
4	It causes the flow of current in a circuit connected to the given cell.	It is caused by the flow of current in a circuit.