Question

The neutral temperature of a thermocouple is ${500}^{\circ }C$. The inversion temperature if cold junction is at ${30}^{\circ }C$ is

• A. ${1030}^{\circ }C$
• B. ${530}^{\circ }C$
• C. ${970}^{\circ }C$
• D. ${1000}^{\circ }C$

Answer 1

The correct option is C ${970}^{\circ }C$

$T_i-T_n=T_n-T_0$
$T_i=2T_n-T_0=(2\times 773)-\left(303\right)=1243K={970}^{0}C$