(a) A 35.3-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 8.00 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Material Resistivity (0 - m) Temperature Coefficient of Resistivity a [(°C)11 Silver 1.59 x 10 3 3.8 x 10-3 Copper 1.7 x 10° 3.9 x 10-3

(a) A 35.3-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 8.00 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Material Resistivity (0 - m) Temperature Coefficient of Resistivity a [(°C)11 Silver 1.59 x 10 3 3.8 x 10-3 Copper 1.7 x 10° 3.9 x 10-3

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.

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(a) A 35.3-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 8.00 V is applied across
the length of the wire, determine the current in the wire. (Use the values in the following table.)
Material
Resistivity (0 - m)
Temperature Coefficient of Resistivity a [(°C)11
Silver
1.59 x 10 3
3.8 x 10-3
Copper
1.7 x 10°
3.9 x 10-3

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