Q. If the cold junction of a thermo-couple is kept at 0°C and the hot junction is kept at T°C then the relation between neutral temperature (Tn) and temperature of inversion (Ti) is
A) Tn = 2Ti
B) Tn = Ti − T
C) Tn = Ti + T
D) Tn = Ti/2
Explanation
[Solution from source] For a thermocouple with the cold junction at 0°C, the neutral temperature is the mean of the cold-junction and inversion temperatures, so Tn = (0 + Ti)/2 = Ti/2. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.