Question

Q. Potentiometer can be used to
(a) measure a current
(b) compare emfs of two batteries
(c) supply current in a circuit
(d) measure the resistance of a wire​

Answer 1

Answer:

b measure the resistance of a wirw

Answer 2

Answer:

not confirm,

but its says the potential, so i think it is related to the emfs

so the answer can be b)

thanks for marking it the brainliest, was it correct