JEE PHYSICS MCQ: CURRENT ELECTRICITY

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In a potentiometer circuit a cell of EMF 1.5 V gives balance point at 36 cm length of wire. If another cell of EMF 2.5 V replaces the first cell, then at what length of the wire, the balance point occurs?

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Correct option: C

60 cm

Option C (60 cm) is correct because the balancing length in a potentiometer is directly proportional to the EMF of the cell.

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