Which instrument is utilized to measure voltage in electrical circuits?

• A. Wattmeter
• B. Ammeter
• C. Voltmeter
• D. Ohmmeter

Answer: (C)

The instrument used to measure voltage in electrical circuits is known as a voltmeter. This device is specifically designed to assess the electric potential difference between two points in a circuit. When connected in parallel with the component whose voltage is being measured, the voltmeter provides a reading that reflects the amount of voltage present.

A wattmeter, on the other hand, measures the power in an electrical circuit, factoring in both voltage and current. An ammeter measures the current flowing through a circuit and is designed to be connected in series to measure the flow of electrons. An ohmmeter measures resistance in ohms and is not intended for measuring voltage. Each of these instruments has a distinct purpose, making the voltmeter the appropriate choice for measuring voltage.