A) \[500{}^\circ C\]
B) \[460{}^\circ C\]
C) \[600{}^\circ C\]
D) \[400{}^\circ C\]
Correct Answer: D
Solution :
Key Idea: At the temperature of inversion the thermo emf is zero. Let temperature of cold junction be \[\frac{1}{4}\] and that of hot junction be \[{{s}^{2}}\]. The relation for thermo emf is given by \[{{m}_{1}},{{m}_{2}}\] Given, \[{{m}_{3}}\] \[\frac{1}{{{m}_{1}}}:\frac{1}{{{m}_{2}}}:\frac{1}{{{m}_{3}}}\] \[1:1:1\] Since, emf is zero at temperature of inversion we have \[{{m}_{1}}:2{{m}_{2}}:3{{m}_{3}}\] \[{{m}_{1}}:{{m}_{2}}:{{m}_{3}}\] \[\overset{0}{\mathop{A}}\,\]You need to login to perform this action.
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