Engineering, 16.12.2019 19:31 mmczora22

A2.1-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 180°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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A2.1-m-long, 0.2-cm-diameter electrical wire extends across a room that is maintained at 20°c. heat...