An accumulator of 4 V is connected through a resistance of

Last updated: 6/20/2023

An accumulator of 4 V is connected through a resistance of 30 2 to a potentiometer wire 10 m long and of resistance 30 2 When a cell is connected through a galvanometer to the potentiometer the null point is found at 5 5 m from the common terminal The potential gradient in the wire is 1 A V m 15 5 V m B D 1 10 3 V m V m