A) \[290{}^\circ C,580{}^\circ C\]
B) \[270{}^\circ C,580{}^\circ C\]
C) \[270{}^\circ C,500{}^\circ C\]
D) \[290{}^\circ C,540{}^\circ C\]
E) \[290{}^\circ C,500{}^\circ C\]
Correct Answer: C
Solution :
\[2{{t}_{n}}={{t}_{0}}+{{t}_{i}}\] ?? (1) Neutral temperature\[({{t}_{n}})\]does not change whatever may be the change in temperature of cold junction. Now, \[2\times 270{}^\circ =40{}^\circ +{{t}_{i}}\] \[\Rightarrow \] \[{{t}_{i}}=500{}^\circ C\]
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