Question

Explain the principle of Potentiometer. Draw the
labelled circuit diagram for comparing of emf of
two cells?​

Answer 1

Answer:

Construction and Working Principle. The potentiometer consists of a long resistive wire L made up of magnum or with constantan and a battery of known EMF V. This voltage is called as driver cell voltage. ... “When there is no potential difference between any two nodes there is electric current will flow”.