Mathematics · Mensuration and Calculation
An electric current is passed through a wire 1 mm in diameter and 10 cm long. The wire is submerged in liquid water at atmospheric pressure where the convective heat transfer coefficient h is 5000 W/m2.°C and water temperature is 100°C. How much electric power must be supplied to the wire to maintain the wire surface at 114°C? (Take π = 3.1416)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 152.36 W
- 242.39 W
- 332.39 W
- 421.99 W✓
Correct answer
21.99 W
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