Emf developed by a thermocouple while measuring a temperature of 600...

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Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is

A. Chromel-alumel

B. Iron-constantan

C. Platinum-platinum+rhodium

D. Either A, B or C

Answer: Option C

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