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)...
Related questions
Question
![A copper power line is 4 cm in diameter. If this power line spans a distance of 80 km, find its resistance. (Pcopper
1.68 x 10-8 Q-m).
O 0.46 Ohms
480 Ohms
O 3600 Ohms
O 5.4 Ohms
O 1.1 Ohms
=](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F82dd1d29-7049-45b8-a9a7-805a4d4d6374%2Fede6a570-cc8e-471d-b767-bcac66a4419a%2Ffc1i7mo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A copper power line is 4 cm in diameter. If this power line spans a distance of 80 km, find its resistance. (Pcopper
1.68 x 10-8 Q-m).
O 0.46 Ohms
480 Ohms
O 3600 Ohms
O 5.4 Ohms
O 1.1 Ohms
=
Expert Solution
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Step 1 GIVEN
Diameter, d = 4 cm = 0.04 m
Radius, r = d/2 = 0.02 m
Length, L = 80 km = 80×10³ m = 80,000 m
Resistivity, ρ = 1.68×10-8 Ωm
Resistance, R = ?
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