The following thermocouple may be used for measuring temperature upto

1.	The following thermocouple may be used for measuring temperature upto 1873°K__________________?
A.	Chromel-alumel
B.	Copper-constantan
C.	Platinum-platinum rhodium
D.	Iron-constantan
Answer» D. Iron-constantan

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The following thermocouple may be used for measuring temperature upto 1873°K__________________?

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