What is the terminal potential of a cell? Is it always constant?

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Solution

The potential difference across the electrodes of a cell in a closed circuit is called the terminal potential of the cell.
The terminal potential of a cell is zero when it is short-circuited.
When the current in the circuit is zero, then $e . m . f .$ of the cell is equal to the terminal potential of the cell.
The terminal potential is not always constant as it depends on the external and internal resistance of the cell.

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