A) \[{{60}^{o}}\]C
B) \[{{70}^{o}}\] C
C) 50o C
D) 35o C
Correct Answer: B
Solution :
Let the temperature of junction be q then according to following figure. H = H1 + H2 Þ \[\frac{3K\times A\times (100-\theta )}{l}=\frac{2KA(\theta -50)}{l}+\frac{KA(\theta -20)}{l}\] Þ 300 ? 3q = 3q ? 120 Þ q = 70°CYou need to login to perform this action.
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