The thermal resistance for heat conduction through a spherical wall is Options: A . &nbsp(r₂-r₁)/2πkr₁r₂ B . &nbsp(r₂-r₁)/3πkr₁r₂ C . &nbsp(r₂-r₁)/πkr₁r₂ D . &nbsp(r₂-r₁)/4πkr₁r₂

The thermal resistance for heat conduction through a spherical wall is

Question

The thermal resistance for heat conduction through a spherical wall is

Options:

A . (r₂-r₁)/2πkr₁r₂

B . (r₂-r₁)/3πkr₁r₂

C . (r₂-r₁)/πkr₁r₂

D . (r₂-r₁)/4πkr₁r₂

Answer: Option D
Answer: (d).(r₂-r₁)/4πkr₁r₂

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