Given a cylindrical conductor of radius21.50 mm with current density 2.50 A/m² and free-electron density of 8.00 × 1028 mspeed?-3. What is the driftA. 1.95 × 10–10 m/sB. 1.95 × 10-18m/s-5C. 2.76 × 10¬³ m/sD. 2.76 × 10-13 m/s-13

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Given a cylindrical conductor of radius 1.50 mm with current density 2.50 A/m² and free- electron density of 8.00 × 1028 m-3. What is the drift speed? -10 A. 1.95 × 10¬10 m/s B. 1.95 x 10-18 m/s C. 2.76 × 10- m/s D. 2.76 × 10-13 m/s

Given a cylindrical conductor of radius 1.50 mm with current density 2.50 A/m² and free- electron density of 8.00 × 1028 m-3. What is the drift speed? -10 A. 1.95 × 10¬10 m/s B. 1.95 x 10-18 m/s C. 2.76 × 10- m/s D. 2.76 × 10-13 m/s

College Physics

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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

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

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Given a cylindrical conductor of radius
2
1.50 mm with current density 2.50 A/m² and free-
electron density of 8.00 × 1028 m
speed?
-3. What is the drift
A. 1.95 × 10–10 m/s
B. 1.95 × 10-18
m/s
-5
C. 2.76 × 10¬³ m/s
D. 2.76 × 10-13 m/s
-13

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