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 beA. `10^(-2)` V/mB. `10^(-4)` V/mC. `10^(-6)` V/mD. `10^(-8)` V/m

If specific resistance of a potentiometer wire is `10^(–7 ) Omega m`

1.	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 beA. `10^(-2)` V/mB. `10^(-4)` V/mC. `10^(-6)` V/mD. `10^(-8)` V/m
Answer» Correct Answer - A Solve by `x=I_rho/A`

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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 beA. `10^(-2)` V/mB. `10^(-4)` V/mC. `10^(-6)` V/mD. `10^(-8)` V/m

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