Question
Physics Question on Current electricity
With the help of potentiometer, we can determine the value of emf of a given cell. The sensitivity of the potentiometer is
(A) directly proportional to the length of the potentiometer wire
(B) directly proportional to the potential gradient of the wire
(C) inversely proportional to the potential gradient of the wire
(D) inversely proportional to the length of the potentiometer wire
Choose the correct option for the above statements:
A
A only
B
C only
C
A and 𝐶 only
D
𝐵 and 𝐷 only
Answer
A and 𝐶 only
Explanation
Solution
The correct option is (C): A and C only.