Question

Chapter 20, Problem 016 High-voltage power lines are a familiar sight throughout the country. The aluminum (resistivity = $2.82 \times 10^{-8} \Omega \text{m}$) wire used for some of these lines has a cross-sectional area of $6.7 \times 10^{-4} \text{m}^2$. What is the resistance of 12 kilometers of this wire? Number Units the tolerance is +/-2%

          Chapter 20, Problem 016
High-voltage power lines are a familiar sight throughout the country. The aluminum (resistivity = $2.82 \times 10^{-8} \Omega \text{m}$) wire used for some of these lines has a cross-sectional area of $6.7 \times 10^{-4} \text{m}^2$. What is the resistance of 12 kilometers of this wire?
Number
Units
the tolerance is +/-2%

Chapter 20, Problem 016
High-voltage power lines are a familiar sight throughout the country. The aluminum (resistivity = 2.82 × 10^-8Ωm) wire used for some of these lines has a cross-sectional area of 6.7 × 10^-4m^2. What is the resistance of 12 kilometers of this wire?
Number
Units
the tolerance is +/-2%

Added by Gail P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Prabhu Ramji

Step 1

We are given that the wire is 12 kilometers long, so we need to convert kilometers to meters. 1 kilometer = 1000 meters Therefore, 12 kilometers = 12 * 1000 = 12000 meters. Show more…

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Chapter 20, Problem 016: High-voltage power lines are a familiar sight throughout the country. The area of the wire is 10 m^2. What is the resistance of 12 kilometers of this wire?