Question

The temperature of cold junction and neutral temperature of a thermocouple are $15^{o}C$ and $280^{o}C$ respectively. The temperature of inversion is

• A. $295^{o}C$
• B. $265^{o}C$
• C. $545^{o}C$
• D. $575^{o}C$

Answer 1

Answer: (C)

$545^{o}C$

Answer 2

$t_{n} = \frac{t_{1} + t_{c}}{2}$⇒ $280 = \frac{t_{i} + 15}{2}$ ⇒ $t_{i} = 545^{o}C$