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Grade 12AIIMS MBBS

Find the rate of heat flow through a cross section of the rod shown in figure...

Question image for Find the rate of heat flow through a cross sectio
Profile image of Abhishek Dogra
7 Years agoGrade 12
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1 Answer

Profile image of Arun
6 Years ago
Let the thermal conductivity of the material of the rod is K.
From attached figure by similar triangles    
Heat resistance is given as    
Where A = area of circle  
Step 2:
Integrating both sides 
Step 3:
Rate of heat flow is given by,

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