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Secondary Cells

Effect of tem...

Question

Effect of temperature on internal resistance of a battery is:

A

directly proportional

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B

inversely proportional

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C

no effect

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D

none of these

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Solution

The correct option is B inversely proportional
In the presence of electrolyte, internal resistance, $R_{i}$ is inversely proportional to temperature T. It is because, as we increase the temperature, more electrolyte dissociates and resistance decreases.

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