Physics · Heat Transfer
A cylindrical pipe of length l has an inner radius r1 and outer radius r2. The interior of the pipe carries hot water at temperature T1 while the outer surface is maintained at temperature T2. The rate of conduction heat loss per unit length of the pipe is given by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12πk(T1 − T2)ln(r2/r1)✓
- 24πk(T1 − T2)ln(r2/r1)
- 32πk(T1 − T2)r2 − r1
- 44πk(T1 − T2)r2 − r1
Correct answer
2πk(T1 − T2)ln(r2/r1)
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