The outer ends of two bars A and B are at 100°C and 50° respectivel – 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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