Question

The potential difference is measured by means of an instrument called ___________ .

Answer 1

1. The potential difference is given by the work done in moving a unit charge from one point to another.
2. It causes the charges to flow in a circuit.
3. The potential difference is analogous to the difference in height in a pipe without which the water won't flow through it.
4. The battery maintains a potential difference in the circuit which is responsible for the current flow.
5. A voltmeter is used to calculate the potential difference between two ends in the circuit.
6. It is connected in parallel to the components of which potential difference needs to be known.

Hence, the potential difference is measured by means of an instrument called a voltmeter.