4. How much resistance does a 5.0 m long copper wire with aradius of 0.051 m (p = 1.7 X 10-8 Q m) have?A)1.1 x 10-6 QB)3.3 x 10-6 QC)2.1 x10-4 QD)1.2 x10-3 Q

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Answered: 4. How much resistance does a 5.0 m…

4. How much resistance does a 5.0 m long copper wire with a radius of 0.051 m (p = 1.7 X 10º Q m) have? A)1.1 x 10-6 Q B)3.3 x 10-6 Q C)2.1 x10-4 Q D)1.2 x10-3Q

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 37P: What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter?

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

4. How much resistance does a 5.0 m long copper wire with a
radius of 0.051 m (p = 1.7 X 10-8 Q m) have?
A)1.1 x 10-6 Q
B)3.3 x 10-6 Q
C)2.1 x10-4 Q
D)1.2 x10-3 Q

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