Question

An electric transmission line made of a 25mm annealed Cu wire carries 200A and has a resistance of 0.4x104 ohm/cm length. If the surface temperature is 200°C and the ambient air temperature is 10°C, determine the heat transfer coefficient between the wire surface and the ambient air and the maximum temperature in the wire. Assume k = 150W/m K.​

Answer 1

Answer:

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