JEE PHYSICS MCQ: CURRENT ELECTRICITY

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In potentiometer a balance point is obtained, when:-

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Correct option: B

The p.d. of the wire between the +ve end to jockey becomes equal to the e.m.f. of the experimental cell

The correct answer is that the p.d. of the wire between the +ve end to jockey becomes equal to the e.m.f. of the experimental cell because this is the condition for zero current flow through the galvanometer.

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