Question

A potentiometer wire of length 2 m and resistance
10 ohm is connected to an ideal cell of e.m.f 5 V. The
potential difference per unit length of the wire will be
(1) 0.5 V/m
(2) 2.5 V/m
(3) 2 V/m
(4) 1 V/m​

Answer 1

Answer:

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