A) \[\frac{{{\theta }_{2}}+{{\theta }_{1}}}{2}\]
B) \[\frac{{{\theta }_{1}}}{10}+\frac{9{{\theta }_{2}}}{10}\]
C) \[\frac{{{\theta }_{1}}}{3}+\frac{2{{\theta }_{2}}}{3}\]
D) \[\frac{{{\theta }_{1}}}{6}+\frac{5{{\theta }_{2}}}{6}\]
Correct Answer: B
Solution :
Let the temperature of interface be\[''\theta ''\] \[{{i}_{1}}={{i}_{2}}\] {Steady state conduction} \[\frac{3KA({{\theta }_{2}}-\theta )}{d}=\frac{KA(\theta -{{\theta }_{1}})}{3d}\] \[\theta =\frac{9\theta {{ & }_{2}}}{10}+\frac{\theta {{ & }_{1}}}{10}\]You need to login to perform this action.
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