14. Two wires of equal length, one of aluminum and the other of copper have the same resistance. Which of the two wires is lighter? Hence explain why aluminum wires are preferred for overhead power cables. (PAI = 2.63 x 10-8 22 m, pcu = 1.72 × 10-8 m, Relative density of Al = 2.7, of Cu = 8.9.)
14. Two wires of equal length, one of aluminum and the other of copper have the same resistance. Which of the two wires is lighter? Hence explain why aluminum wires are preferred for overhead power cables. (PAI = 2.63 x 10-8 22 m, pcu = 1.72 × 10-8 m, Relative density of Al = 2.7, of Cu = 8.9.)
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter18: Electric Charge And Electric Field
Section: Chapter Questions
Problem 11CQ: Given the polar character of water molecules, explain how ions in the air form nucleation centers...
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