Question
Question: A potentiometer is an ideal device of measuring potential difference because...
A potentiometer is an ideal device of measuring potential difference because
A
It uses a sensitive galvanometer
B
It does not disturb the potential difference it measures
C
It is an elaborate arrangement
D
It has a long wire hence heat developed is quickly radiated
Answer
It does not disturb the potential difference it measures
Explanation
Solution
In balance condition, potentiometer doesn't take the current from secondary circuit.