A resistance of R `Omega` draws current from a potentiometer, as shown in the figure. The
Channel: Doubtnut
Date: 2020-01-19

A resistance of R `Omega` draws current from a potentiometer, as shown in the figure. The potentiometer has a total resistance `R_(0)Omega`. A voltage V is supplied to the Potentiometer. Derive an expression for the voltage across R when the sliding contact in the middle of the potentiometer.