Current Electricity - Result Question 95
100. A potentiometer wire has length and resistance . The resistance that must be connected in series with the wire and an accumulator of e.m.f. , so as to get a potential gradient per on the wire is
[2015]
(a)
(b)
(c)
(d)
Show Answer
Answer:
Correct Answer: 100. (d)
Solution:
- (d) Total potential difference across potentiometer wire
volt volt potential gradient
So,