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EMF and Terminal Voltage

For what a vo...

Question

For what a voltmeter is used to measure ?

A

Electric power

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B

Consumption of energy

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C

Potential difference

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D

Current

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Solution

The correct option is C Potential difference
Answer is C.
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog to digital converter.

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