Voltage is measured with which instrument?

Voltage is measured with which instrument?

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

Answer: (C)

Voltage is a measure of potential difference between two points, and a voltmeter is the instrument designed to read that quantity. It’s connected in parallel across the component or portion of the circuit where you want to know the voltage, so it measures the same potential difference without drawing significant current from the circuit. The high internal resistance of a voltmeter minimizes loading, keeping the circuit operation essentially unchanged while you get an accurate reading. Ammeters measure current and are placed in series; ohmmeters measure resistance by injecting a small current and observing the response; a multimeter can measure voltage as well but is a versatile instrument used for multiple quantities, whereas a voltmeter is the specific tool for voltage measurement.

Voltage is a measure of potential difference between two points, and a voltmeter is the instrument designed to read that quantity. It’s connected in parallel across the component or portion of the circuit where you want to know the voltage, so it measures the same potential difference without drawing significant current from the circuit. The high internal resistance of a voltmeter minimizes loading, keeping the circuit operation essentially unchanged while you get an accurate reading.

Ammeters measure current and are placed in series; ohmmeters measure resistance by injecting a small current and observing the response; a multimeter can measure voltage as well but is a versatile instrument used for multiple quantities, whereas a voltmeter is the specific tool for voltage measurement.