Which of the following devices should be used for accurate measurement of low D.C. voltage ?
A)small range moving coil voltmeter
B)d.c. potentiometer
C)small range thermocouple voltmeter
D)none of the above

Question

Quizplus · Accepted Answer

A d.c. potentiometer is specifically designed for the accurate measurement of low D.C. voltages. It measures voltage by comparing the unknown voltage with a known reference voltage, which allows for very precise measurements.

Which of the Following Devices Should Be Used for Accurate