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

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To find the relationship between the potential difference across the terminals of a cell and the EMF (electromotive force) of the cell, we can analyze the situation using Kirchhoff's voltage law and consider different scenarios based on the current flowing through the cell. ### Step-by-Step Solution: 1. **Define the Cell and Parameters**: - Let the EMF of the cell be denoted as \( \epsilon \). - Let the internal resistance of the cell be denoted as \( r \). - Let the current flowing through the circuit be denoted as \( I \). ...
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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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