The length per unit resistance of copper wire has a value of 7.63 mm per ohm for a diameter of 1,450 mm. This corresponds to a resistivity of 2.16 x 10 “ 2 m; 1.72x 10“ 2 m; 1 5.04 x 104 Om; 7.63 x 10 2 m AB

The length per unit resistance of copper wire has a value of 7.63 mm per ohm for a diameter of 1,450 mm. This corresponds to a resistivity of 2.16 x 10 “ 2 m; 1.72x 10“ 2 m; 1 5.04 x 104 Om; 7.63 x 10 2 m AB

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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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

22
The length per unit resistance of copper wire
has a value of 7.63 mm per ohm for a
diameter of 1,450 mm. This corresponds to a
resistivity of:
2.16 x 10 4 2 m;
1,72x 10“ 2 m; 1
5.04 x 104 2m;
7.63 x 10 2 m
ABCD

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