Q. For a certain thermocouple, if the temperature of the cold junction is $0℃,$ the neutral temperature and inversion temperature are $285℃\ and\ \ 570℃$ respectively. If the cold junction is brought to $10℃,$ then the new neutral and inversion temperatures are respectively
A) $285℃\ and\ \ 560℃$
B) $285℃\ and\ \ 570℃$
C) $295℃\ and\ \ 560℃$
D) $275℃\ and\ \ 560℃$
Explanation
(a) Neutral temperature remains same.
Inversion temperature, $T_{i} = 2T_{n} - T_{c}$
$= 2 \times 285 - 10 = 560℃$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.