Question: A 2-m-long, 0.3-cm-diameter electrical wire extends across a room at 15C. Heat is generated in the wire as a result of resistance heating, and

A 2-m-long, 0.3-cm-diameter electrical wire extends across a room at 15C. Heat

A 2-m-long, 0.3-cm-diameter electrical wire extends across a room at 15C. Heat is generated in the wire as a result of resistance heating, and the surface temperature of the wire is measured to be 152C in steady operation. Also, the voltage drop and electric current through the wire are measured to be 60 V and 1.5 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. T = 15C 15 A 60 V 152C

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