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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 3 - Current Electricity > The current in the primary circuit of a potentiometer is 0.2A. The specific resistance and cross section of the potentiometer wire are 4×10^−7 ohm metre and 8×10^−7 m^2 respectively. The potential gradient will be equal to :

The current in the primary circuit of a potentiometer is 0.2A. The specific resistance and cross section of the potentiometer wire are 4×10^−7 ohm metre and 8×10^−7 m^2 respectively. The potential gradient will be equal to :

In the below circuit the current in each resistance is