Distinguish between emf and terminal voltage of a cell.
|It is the maximum potential difference that can be delivered by a cell when no current flows through the circuit.||It is the potential difference across the terminals of the load when the circuit is switched on and a current flows through it.|
|It is represented by E and remains constant for a cell.||It is represented by V and depends on the internal resistance of the cell.|
Concept: Cells, Emf, Internal Resistance
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