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A true rms reading voltmeter uses two thermocouple in order: - 

a) to increase sensitivity b) that a second thermocouple cancels out the no linear effect of the first thermocouple c) to prevent drift in the dic. Amplifier d) all of the above

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A true rms reading voltmeter uses two thermocouple in order: -  that a second thermocouple cancels out the no linear effect of the first thermocouple

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