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In D.C. circuits, power is measured using ________

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In D.C. circuits, power is measured using ________

(a) ohmmeter and galvanometer

(b) ohmmeter and voltmeter

(c) ammeter and voltmeter

(d) ammeter and galvanometer

I have been asked this question during a job interview.

Query is from Dynamometer Type Wattmeter in chapter Measurement of Power and Related Parameters of Electrical Measurements

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The correct answer is (c) ammeter and voltmeter

Best explanation: An ammeter is used to measure current flowing through a circuit, while a voltmeter is used to measure the voltage across the circuit. Hence in D.C. circuits, ammeter and voltmeter are used to measure power.

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