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

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

Question Image
Grade:12

1 Answers

Arun
25763 Points
one year 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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