Question: Problem 0 4 : Thermal energy generated by the electrical resistance of a 6 - mm - diameter and 5 - mlong bare cable is

Problem 04: Thermal energy generated by the electrical resistance of a 6-mm-diameter and 5-mlong bare cable is dissipated to the surrounding air at 25C. The voltage drop and the electric current across the cable in steady operation are measured to be 60 V and 1.5 A, respectively. Disregarding radiation, estimate the surface temperature of the cable. Evaluate air properties at a film temperature of 60C and 1 atm pressure. Is this a good assumption?

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