A 411-km-long high-voltage transmission line 7.00 cm in diameter carries a steady current of 1,900 A. If the conductor is copper with a free charge density of 8.50 × 102º electrons per cubic meter, how many years does it take one electron to travel the full length of the cable?
A 411-km-long high-voltage transmission line 7.00 cm in diameter carries a steady current of 1,900 A. If the conductor is copper with a free charge density of 8.50 × 102º electrons per cubic meter, how many years does it take one electron to travel the full length of the cable?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Please calculate for me.

Transcribed Image Text:A 411-km-long high-voltage transmission line 7.00 cm in diameter carries a steady current of 1,900 A. If the
conductor is copper with a free charge density of 8.50 x 102° electrons per cubic meter, how many years does
it take one electron to travel the full length of the cable?

Transcribed Image Text:(3) Based on the correct choice in question (2), substitute numerical values to find the time interval required
for one electron to travel the length of the wire.
n neld?
At =
4
I
x 1028 m-3)(1.60 ×
19
10
n)( [0.07
8.5
411000
m
%D
1900
A
1 yr
107 s
3.156 х
S
yr
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