Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 54 A. The resistance per unit length is to be 0.140 Ω/km. Compute for each choice of cable material the currentdensity.
A) The current density for copper?
B) The current density foraluminum?
C) Compute the mass per meter of the cable for each material. The densities of the copper and aluminum are8960 and 2700 kg/ m3, respectively.The mass per meter of the copper cable?
D) The mass per meter of the aluminum cable?