Why is the emf of auxiliary battery greater than the emf to be measured?
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The emf of the driver cell in the potentiometer experiment is greater than the emf of the cell to be measured because , If not, then there will be a small potential difference across the potentiometer wire and balancing point will not be obtained.
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hey
The emf of the driver cell in the potentiometer experiment is greater than the emf of the cell to be measured because , If not, then there will be a small potential difference across the potentiometer wire and balancing point will not be obtained.
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