Physics · Heat Transfer
The critical radius of insulation for a cylindrical pipe is given by (where h is the heat transfer coefficient of the outer surrounding medium and k is the thermal conductivity of the insulating material):
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1r = h/k
- 2r = 2h/k
- 3r = k/h✓
- 4r = 2k/h
Correct answer
r = k/h
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