The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)
A. 0.18
B. 0.22
C. 1.3
D. 0.9

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, t

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