Question

Measurement of internal resistance of a cell in potentiometer?
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Answer 1

Answer:

Potentiometer is a device used to measure the internal resistance of a cell, to compare the e.m.f. of two cells and potential difference across a resistor. It consists of a long wire of uniform cross sectional area and of 10 m in length.The wires are joined in series by using thick copper strips.

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Answer 2

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