The outer ends of two bars A and B are at 100 C and 50 respectively. – McqOptions

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1.	The outer ends of two bars A and B are at 100 C and 50 respectively. Calculate the temperature at the welded joint if they have the same cross-section and the same length and their thermal conductivities are in the ratio of A:B = 7:5.
A.	79.166 C
B.	80.548 C
C.	20.157 C
D.	58.147 C
Answer» B. 80.548 C

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