A potentiometer consists of a wire of length 4 m and resistance 10 W. – McqOptions

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1.	A potentiometer consists of a wire of length 4 m and resistance 10 W. It is connected to cell of emf 2 V. The potential difference per unit length of the wire will be [Pb. PET 2002]
A.	0.5 V/m
B.	10 V/m
C.	2 V/m
D.	5 V/m
Answer» B. 10 V/m

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