Calculate the average drift speed of electrons traveling through a copper wire with a cross- sectional area of 90 mm² when carrying a current of 60 A (values similar to those for the electric wire to your study lamp). Assume one electron per atom of copper contributes to the current. The atomic mass of copper is 63.5 g/mol and its density is 8.93 g/cm³. Avogadro's number is 6.022 x 1023 and the fundamental charge is 1.602 x 10-19 C. Answer in units of m/s.

Calculate the average drift speed of electrons traveling through a copper wire with a cross- sectional area of 90 mm² when carrying a current of 60 A (values similar to those for the electric wire to your study lamp). Assume one electron per atom of copper contributes to the current. The atomic mass of copper is 63.5 g/mol and its density is 8.93 g/cm³. Avogadro's number is 6.022 x 1023 and the fundamental charge is 1.602 x 10-19 C. Answer in units of m/s.

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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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

Calculate the average drift speed of electrons
traveling through a copper wire with a cross-
sectional area of 90 mm² when carrying a
current of 60 A (values similar to those for the
electric wire to your study lamp). Assume
one electron per atom of copper contributes
to the current. The atomic mass of copper
is 63.5 g/mol and its density is 8.93 g/cm³.
Avogadro's number is 6.022 x 1023 and the
fundamental charge is 1.602 x 10-19 C.
Answer in units of m/s.

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