Question

Three rods made of the same material and having the same cross-section have joined as shown in the fig. Each rod is of same length. The left and right ends are kept at 100 C and 900 C respectively. The temperature of the junction of the three rods will be :

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A
700C
B
600
C
300
D
19030C
Solution
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Let the temp at the intersection of the three rods is T.
Since at steady state rate of heat transfer is same,

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