The heat transfer by conduction through a thick sphere is given by Options: A . &nbspQ = 2πkr1 r2 (T1 - T2)/ (r2 - r1) B . &nbspQ = 4πkr1 r2 (T1 - T2)/ (r2 - r1) C . &nbspQ = 6πkr1 r2 (T1 - T2)/ (r2 - r1) D . &nbspQ = 8πkr1 r2 (T1 - T2)/ (r2 - r1)

The heat transfer by conduction through a thick sphere is given by

Question

The heat transfer by conduction through a thick sphere is given by

Options:

A . Q = 2πkr1 r2 (T1 - T2)/ (r2 - r1)

B . Q = 4πkr1 r2 (T1 - T2)/ (r2 - r1)

C . Q = 6πkr1 r2 (T1 - T2)/ (r2 - r1)

D . Q = 8πkr1 r2 (T1 - T2)/ (r2 - r1)

Answer: Option B

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