The calibration data of a thermocouple with its cold junction at 0°C are given below. The hot junction of the thermocouple is placed in a bath at 80°C, while its cold junction is at 20°C. What is the emf of thermocouple ?

A. 3.26 mv
B. 0.80 mv
C. 2.46 mv
D. 2.43 mv

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