A steel rod 10.0 cm long is welded end to end to a copper bar of 20.0 cm long?
Each bar has a square section of 2.0 cm square. The free end of the steel rod is maintained at 100 C and the free end of the copper bar is maintained at 0 C. Find the temperature at the junction of two bars and overall rate of heat flow. The thermal conductivities of steel and copper are 50.2 and 385.0 W / mK respectively
RN82-Con filler wire, welding or explosive
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