Solved: A 50-cm-long, 0.2-cm-diameter electric resistance
Chapter 2, Problem 2136(choose chapter or problem)
A 50-cm-long, 0.2-cm-diameter electric resistance wire submerged in water is used to determine the boiling heat transfer coefficient in water at 1 atm experimentally. The surface temperature of the wire is measured to be 1308C when a wattmeter indicates the electric power consumption to be 4.1 kW. Then the heat transfer coefficient is (a) 43,500 W/m2 8C (b) 137 W/m2 8C (c) 68,330 W/m2 8C (d) 10,038 W/m2 8C (e) 37,540 W/m2 8C
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