An electrical transmission line made of a 25mm annealed copper wire carries 200 A and has a resistance of 0.4 x 10^-4 Ω/cm length. Determine the heat tansfer coeffficient between the wire surface and the ambient air and the maximum temperature in the wire.
An electrical transmission line made of a 25mm annealed copper wire carries 200 A and has a resistance of 0.4 x 10^-4 Ω/cm length. If the surface temperature is 200°C and the ambient air temperarure is 10°C, determine the heat tansfer coeffficient between the wire surface and the ambient air and the maximum temperature in the wire. Assume k = 150 W/ mK.
