11 A potentiometer consists of a wire of length 4 m and

Last updated: 6/25/2023

11 A potentiometer consists of a wire of length 4 m and resistance 20 S2 If it is connected to a cell of emf 20 volt the potential difference per unit length of the wire will be b 2 Vm 1 a 0 5 V m 1 c 5 Vm 1 d 1 0 V m 1