The coefficient of the thermal conductivity of copper is 9 times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The heat current 
Thermal P.D. (temp. difference)
Thermal resistance
Thermal P.D. 
where 
.
.
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