Question

(1)
If the length of a potentiometer wire is increased by keeping
constant potential difference across the wire, then
(a) null point is obtained at larger distance
(b) there is no change in the null point
(c) potential gradient is increased -
(d) null point is obtained at shorter distance​

Answer 1

Answer:

When the length of potentiometer wire is increased, the potential gradient decreases and the length of previous balance point is increased

Answer 2

Answer:

d) null point is obtained at shorter distance