What is the expression for the thermal conduction resistance to heat transfer through a hollow sphere of inner radius r1 and outer radius r2, and thermal conductivity k?

Question

TuteeHUB · Accepted Answer

None of these

TuteeHUB · Answer

$\frac {(r_2-r_1)r_1 r_2}{4\pi k}$

TuteeHUB · Answer

$\frac {(r_2-r_1)4\pi k}{r_1 r_2}$

TuteeHUB · Answer

$\frac {(r_2-r_1)}{4\pi kr_1 r_2}$

1.	What is the expression for the thermal conduction resistance to heat transfer through a hollow sphere of inner radius r1 and outer radius r2, and thermal conductivity k?
A.	\(\frac {(r_2-r_1)r_1 r_2}{4\pi k}\)
B.	\(\frac {(r_2-r_1)4\pi k}{r_1 r_2}\)
C.	\(\frac {(r_2-r_1)}{4\pi kr_1 r_2}\)
D.	None of these
Answer» D. None of these

What is the expression for the thermal conduction resistance to heat transfer through a hollow sphere of inner radius r1 and outer radius r2, and thermal conductivity k?

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