JEE PHYSICS MCQ: CURRENT ELECTRICITY

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A potentiometer consist of a wire of length 2m and resistance . It is connected to an ideal cell of e.m.f 4V. The potential difference per unit length of the wire will be

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Correct option: D

2 V/m

Option D (2 V/m) is correct because the potential difference per unit length is calculated by dividing the total potential difference by the length of the wire.

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