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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)` V/m

B

`10^(-4)` V/m

C

`10^(-6)` V/m

D

`10^(-8)` V/m

Text Solution

Verified by Experts

The correct Answer is:
A
Solve by `x=I_rho/A`
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