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Engineering, 27.08.2021 20:10 CrunchyBreadstick

copper rod of diamefer D 5 mm is heated by the passage of an electric current. The surface of the rod is maintained at a temperature of 175 C while it is dissipating ambient at T 25°C with a heat transfer coefficient h 150 W/(m with a 1-mm-thick coating of thermal conductivity k-06 W/m *C), will the heat loss from the heat by convection into an .C If the rod is to be covered rod increase or decrease

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