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What is the relationship between potential difference across the terminals of a cell and emf of the cell ?

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To understand the relationship between the potential difference across the terminals of a cell and the electromotive force (EMF) of the cell, we can analyze three different scenarios: an open circuit, a discharging circuit, and a charging circuit. ### Step-by-Step Solution: 1. **Open Circuit Condition**: - When the circuit is open, no current flows through the cell. - In this case, the potential difference (V) across the terminals of the cell is equal to the EMF (E) of the cell. - **Equation**: \( V = E \) ...
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