A conductor has a cross-sectional area of 2.3×106 m² and the number of free electrons per unit volume is 8.5 x1028 electron/m³. When the current is 7.1 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6×1019 c.

A conductor has a cross-sectional area of 2.3×106 m² and the number of free electrons per unit volume is 8.5 x1028 electron/m³. When the current is 7.1 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6×1019 c.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 68PQ

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Question

A conductor has a cross-sectional
area of 2.3x106 m² and the number
of free electrons per unit volume is 8.5
X1028 electron/m³. When the current
is 7.1 A, find the drift speed (in mm/s)
of the electrons. Use the charge of the
electron to be 1.6×1019 c.

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