The rate of conduction heat flow in case of a composite sphere is given by Options: A . &nbspQ = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃ B . &nbspQ = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃ C . &nbspQ = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃ D . &nbspQ = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃

The rate of conduction heat flow in case of a composite sphere is given by

Question

The rate of conduction heat flow in case of a composite sphere is given by

Options:

A . Q = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃

B . Q = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃

C . Q = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃

D . Q = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r3 – r2 )/4πk₂r₂r₃

Answer: Option A
Answer: Q = t₁ – t₂/ (r₂ – r₁)/4πk₁r₁r₂ + (r₃ – r₂ )/4πk₂r₂r₃

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