Why the galvanometer used in potentiometer experiment to determine emf of a cell shows 0 deflection when potential drop between two points on the potentiometer wire becomes equal to emf of a cell?I know that in that case no current is flowing as shown by galvanometer but why is it so?(The potentiometer I am referring to is the classical one taught to 12 th standard students).


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.