Q17 of 330 Page 6

The work done in moving a unit charge across two points in an electric circuit is a measure of:

Potential difference between two points in a circuit is the work done in moving unit charge (i.e. one coulomb) from one point to the other.

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16

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

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State whether a voltmeter has a high resistance or a low resistance. Give reason for your answer.

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The device used for measuring potential differences is known as:

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Which of the following units could be used to measure electric charge?