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If specific resistance of a potentiomete...

If specific resistance of a potentiometer wire is `10^(–7 ) Omega m`, the current flow through it is `0.1 A` and the cross-sectional area of wire is `10^(–6) m^(2)` then potential gradient will be

A

`10^(-2)` volt/m

B

`10^(-4)` volt/m

C

`10^(-6)`volt/m

D

`10^(-8)`volt/m

Text Solution

Verified by Experts

The correct Answer is:
1
Potential gradient `x=(V)/(l)=(IR)/(l)=(Irho)/(A)`
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