A battery has some internal resistance. Can the potential difference across the terminals of the battery be equal to its emf.

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Physics

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9 July, 12:43

A battery has some internal resistance. Can the potential difference across the terminals of the battery be equal to its emf.

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Answers (1)

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Mathias Sullivan · Answer 1

yes, the potential difference across the terminals of the battery can be equal to its emf.

Explanation:

when the current in the battery is zero, meaning the current though, and hence the potential drop across the internal resistance is zero. This only happens when there is no load placed on the battery.