| EMF | Potential Difference |
| 1. It is the potential difference between two electrodes when there is no current flowing through it | 1. It is the difference of two potentials between two electrodes when the cell is under operation. |
| 2. Maximum voltage that a cell can delivers. | 2. It is less than the maximum potential which a cell can delivers. |
| 3. It is the potential which is responsible for the steady flow of the current in cell. | 3. It is not responsible for steady flow of current. |
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