Answers

2016-02-11T09:14:26+05:30
ElectroMotive Force (emf) : It is the potential difference between the terminals of a cell when no current flows.

Terminal Voltage (simply Voltage, V) : It is the potential difference between the terminals of a cell when current flows.

Since a cell has an internal resistance that requires energy ( potential difference) to overcome, then the terminal voltage is always less than the ElectroMotive Force.
( V < emf ).
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2016-02-14T12:16:18+05:30
ElectroMotive Force (emf) : It is the potential difference between the terminals of a cell when no current flows. Terminal Voltage (simply Voltage, V) : It is the potential difference between the terminals of a cell when current flows. Since a cell has an internal resistance that requires energy ( potential difference) to overcome, then the terminal voltage is always less than the ElectroMotive Force. ( V < emf ).
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