and the emf of its standard cell is E volt It is employed to

Last updated: 6/27/2023

and the emf of its standard cell is E volt It is employed to measure the emf of a battery whose internal resistance is 0 5 22 If the balance point is obtained at 30 cm from the positive end the emf of battery is 30 E 100 5 30 E 100 0 5 30 E 0 51 100 potentiometer wire 30 F 1 where i is the current in the