A) \[0{}^\circ C\]
B) \[\frac{100}{l}{}^\circ C\]
C) \[\frac{100}{2l}{}^\circ C\]
D) \[100{}^\circ C\]
Correct Answer: A
Solution :
[a] Suppose temperature difference between A and B is \[100{}^\circ C\] and \[{{\theta }_{\Alpha }} > {{\theta }_{B}}\] Heat current will flow from A to B via path ACB and ADB. Since all therod are identical, so,\[{{(\Delta \theta )}_{Ac}}={{(\Delta \theta )}_{AD}}\] (Because heat current \[\operatorname{H}=\frac{\Delta \theta }{R};\] here R = same for all) \[\Rightarrow {{\theta }_{A}}-{{\theta }_{C}}={{\theta }_{A}}-{{\theta }_{D}}\Rightarrow {{\theta }_{C}}={{\theta }_{D}}\] i.e., temperature difference between C and D will be zero.You need to login to perform this action.
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