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Measurement of heat power ________

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Measurement of heat power ________

(a) uses a heat sink

(b) uses a thermometer

(c) uses a thermocouple

(d) uses a black body

This question was posed to me at a job interview.

This interesting question is from True RMS Responding Voltmeter in section Electronic Instruments of Electrical Measurements

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Best answer
Correct choice is (c) uses a thermocouple

The best explanation: A thermocouple is used to measure the heat power in a true R.M.S responding voltmeter. Input voltage under measurement is applied to the heater to which a thermocouple is also attached.

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