Answered: A copper wire is 2.50 m long and has a…

A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when connected to a 3.0 V source? (ρ of copper is 1.72 x 10-8 Ω ∙ m)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 82CP: The current through a 12-gauge wire is given as I(t)=(5.00A)sin(260Hzt)). What is the current...

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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.

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4. A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when connected to a 3.0 V source? (ρ of copper is 1.72 x 10^-8Ω ∙ m)

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