What Is A Voltmeter Used To Measure?
What Is A Voltmeter Used To Measure? Voltmeter, instrument that measures voltages of either direct or alternating electric current on a scale usually graduated in volts, millivolts (0.001 volt), or kilovolts (1,000 volts). … The potentiometer operates by comparing the voltage to be measured with known voltage; it is used to measure very low voltages.