Question

- Two students

X and Y
perform an
experiment on
potentiometer
separately
using the
circuit given
below.
Keeping other parameters unchanged,
how will the position of the null point be
affected, if
(i) X increases the value of resistance R
in the set up by keeping the key K1
closed and the key K2 open?
(ii) Y decreases the value of resistance S
in the set up, while the key K2
remains open and then K1 closed?
Justify your answer. ​

Answer 1

Answer:

I think (ii) is the answer