What is used to measure voltage?

The right tool for measuring voltage is a voltmeter. This instrument is specifically designed to gauge the electrical potential difference, or voltage, between two points in a circuit. When measuring voltage with a voltmeter, it is connected in parallel with the component or section of the circuit. This allows the voltmeter to get an accurate reading of the voltage present, which is essential for diagnosing electrical issues or ensuring a system is operating within specifications.

A multimeter is also capable of measuring voltage, but it is designed to measure multiple electrical properties such as current (amperes) and resistance (ohms) in addition to voltage. While a multimeter is a versatile tool, the direct answer to the question regarding measuring voltage specifically points to the voltmeter as the instrument that is dedicated entirely to that purpose, indicating its primary function. Therefore, while both these tools can measure voltage, the voltmeter is the primary tool designed for that specific measurement.