Question

What is a voltmeter? How is a voltmeter connected in the circuit to measure the potential difference between two points. Explain
with the help of a diagram

Answer 1

Explanation:

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.

A voltmeter is a device that measures the potential difference across two points in the circuit. It is connected in parallel to the two points in the circuit. ... If we connect a voltmeter in series, it will measure a potential difference of 0 volts.

Answer 2

Explanation:

A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. ... A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.