As is the cross sectional area and `rho` is the specific resistance of a potentiometer wire. If I is the current passing through the potentiometer wire, then the potential gradient along the length of the wire is given by

The potential gradient of the potentiometer wire depends on

If the resistivity of a potentiometer wire be rho and area of cross-section be A , then what will be potential gradient along the wire

If the resistivity of a potentiometer wire be rho and area of cross-section be A , then what will be potential gradient along the wire

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

The specific resistance and area of cross section of the potentiometer wire are rho' and A respectively. If a current i passes through the wire, its potential gradient will be

The specific resistance and area of cross section of the potentiometer wire are rho' and A respectively. If a current i passes through the wire, its potential gradient will be

A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10^-7 ohm metre and the current passing through it is 0.1 ampere. Cross-section of the wire is 10^-8 m^2 . The potential gradient along the potentiometer wire is