A 1.4-m-long, 0.2-cm-diameter electrical wire extends across a room that is maintained at 20 C. Heat is
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A 1.4-m-long, 0.2-cm-diameter electrical wire extends across a room that is maintained at 20° C. Heat is generated in the wire as a result of resistance heating, and the surface temperature of the wire is measured to be 240° C in steady operation. Also, the voltage drop and electric current through the wire are measured to be 110 V and 3 A, respectively. Disregarding any heat transfer by radiation, determine the convection heat transfer coefficient for heat transfer between the outer surface of the wire and the air in the room.
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The convection heat transfer coefficient for heat transfer from an electrically heated wire to air ...View the full answer
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Related Book For 
Fundamentals Of Thermal-Fluid Sciences
ISBN: 9781260716979
6th Edition
Authors: Yunus Cengel, John Cimbala, Afshin Ghajar
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