Question

For measuring voltage of any circuit, potentiometer is preferred to voltmeter because ______.

Options

• the potentiometer is cheap and easy to handle.
• calibration in the voltmeter is sometimes wrong .
• the potentiometer almost draws no current during measurement.
• range of the voltmeter is not as wide as that of the potentiometer.

Answer 1

For measuring voltage of any circuit, potentiometer is preferred to voltmeter because the potentiometer almost draws no current during measurement.