Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 43.1 A. The resistanceper unit length is to be 0.136 N/km. The densities of copper and aluminum are 8960 and 2600 kg/m³, respectively. Compute (a) themagnitude J of the current density and (b) the mass per unit length A for a copper cable and (c) J and (d) A for an aluminum cable.(a) Number3.47E5Units(b) NumberUnits(c) NumberUnits(d) NumberUnits

As per the given data, Current (I) = 43.1 A; Resistance per unit length (R/l) = 0.136×10-3 Ω/m; Mass…

Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 43.1 A. The resistance per unit length is to be 0.136 /km. The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the magnitude J of the current density and (b) the mass per unit length for a copper cable and (c) J and (d) A for an aluminum cable.

Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 43.1 A. The resistance per unit length is to be 0.136 /km. The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the magnitude J of the current density and (b) the mass per unit length for a copper cable and (c) J and (d) A for an aluminum cable.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 65PQ

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