A cylindrical conducting wire which is 342.57cm long, 85.39mm thick and resistivity of 3.13Ω.m, (a) has the resistance of R = ? If current I = 12.9A is generated by flowing of 217 electrons/m3 via a conductor, Then the electrons through this conductor (b) have a density J = ?and (c) are drifting at a speed of VD = ?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 61P
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A cylindrical conducting wire which is 342.57cm long,  85.39mm thick and resistivity of 3.13Ω.m, 

(a) has the resistance of R = ?

If current I = 12.9A is generated by flowing of 217 electrons/m3 via a conductor, Then the electrons through this conductor

(b) have a density J =  ?and 

(c) are drifting at a speed of VD = ?

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