General Studies · Heat Transfer
The critical radius of insulation for a cylindrical rod or wire is given by which of the following expressions? (where k = thermal conductivity of insulation material, h0 = heat transfer coefficient of surrounding air)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1h0k
- 2kh0✓
- 32h0k
- 42kh0
Correct answer
kh0
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