Question
What are the differences between the potential difference and the emf of a cell?
Answer
Electromotive force (EMF) | Potential difference |
---|---|
(i) It is the difference of potential between two electrodes of a cell or battery in an open circuit. | (i) It is the difference of potential between two electrodes of a cell or battery in a closed circuit. |
(ii) It does not depend upon the resistance of the circuit. | (ii) It depends on the resistance of the circuit. |
(iii) It is the cause. | (iii) It is the effect. |