Question
Physics Question on Current electricity
For measurement of potential difference, potentiometer is preferred in comparison to voltmeter because
A
potentiometer is more sensitive than voltmeter
B
the resistance of potentiometer is less than voltmeter
C
potentiometer is cheaper than voltmeter
D
potentiometer does not take current from the circuit
Answer
potentiometer does not take current from the circuit
Explanation
Solution
Potentiometer works on null deflection method. In balance condition no current flow in secondary circuit.