A copper wire has a circular cross section with a diameter of 8.11 mm. If the wire carries a current of 1.45 A, find the drift speed (in m/s) of electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 X 1029 electrons/m3 and charge of electron to be q = 1.61 X 10-19 C). Area of a circle = pir^2

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter9: Current And Resistance
Section: Chapter Questions
Problem 81CP: A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The...
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QUESTION 7
A copper wire has a circular cross section with a diameter of 8.11 mm. If the wire carries a current of 1.45 A, find the drift speed (in m/s) of
electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 × 1029 electrons/m³ and charge of electron to be q =
1.61 × 10-19
X
C). Area of a circle = pir^2
Submit your answer in exponential form with two decimal places.
You are required to show your work in the file you
submit.
Transcribed Image Text:QUESTION 7 A copper wire has a circular cross section with a diameter of 8.11 mm. If the wire carries a current of 1.45 A, find the drift speed (in m/s) of electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 × 1029 electrons/m³ and charge of electron to be q = 1.61 × 10-19 X C). Area of a circle = pir^2 Submit your answer in exponential form with two decimal places. You are required to show your work in the file you submit.
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