Questions
A point source of heat of power P is placed at the centre of a spherical shell of mean radius R. The material of the shell has thermal conductivity K. If the temperature difference between the outer and the inner surface of the shell is not to exceed T, then the thickness of the shell should not be less than
detailed solution
Correct option is B
Rate of flow of heat or power P=KAΔθΔx=K4πR2TΔxThickness of shell is 4πR2KTPTalk to our academic expert!
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