Question

In potentiometer, jockey should not be slided?

Answer 1

Answer:

Because the rubbing of wire with jockey can change the uniformity of the cross sectional area of the wire and thereby affecting the fall of potential along with the wire. jockey should not be rubbed against potentiometer wire as it wil affect the cross sectional area of wire and hence final readings will get affected.

Answer 2

hope this will help you,

If the emf of the auxiliary battery/ driver cell is less than the emf of the cell to be measured, then the balance point will not be obtained on the potentiometer wire.

if it's helpful plz mark me as brainliest...

have a nice day