electronic voltmeter
Quick Summary
An electronic voltmeter is an instrument used to measure electrical voltages. Unlike simpler voltmeters that may draw current from the circuit being measured, electronic voltmeters use amplification or rectification to measure AC or DC voltages without significantly affecting the circuit's performance.1
Digital voltmeters, a common type, display readings numerically with high accuracy. Analog voltmeters use a moving pointer on a scale. Other specialized types include electrostatic voltmeters, which measure voltage directly using electrostatic forces, and potentiometers, which compare an unknown voltage to a known one for measuring very low voltages. An instrument that measures voltage, current, and resistance is called a multimeter.1
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