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Introductory Physics Homework Help
Gauss's Law Problem: long, cylindrical charge distribution
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[QUOTE="Kaleem, post: 5460067, member: 548597"] [h2]Homework Statement [/h2] Consider a long, cylindrical charge distribution of radius R with uniform charge density ρ. a) Using Gauss’s law, find the electric field at distance r from the axis, where r < R b) Using Gauss’s law, find the electric field at distance r from the axis, where r > R [h2]Homework Equations[/h2] ∫EdA = Qinside/ε[SUB]0[/SUB] q = ρV V = πr[SUP]2[/SUP]L A = 2πrL [h2]The Attempt at a Solution[/h2] I've successfully solved the first part which is E = ρr/2ε[SUB]0[/SUB]. However for the second part I am confused as to whether or not I would need to use big R for the area, because we are now going at a distance out of the surface or to use little r. [/QUOTE]
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Introductory Physics Homework Help
Gauss's Law Problem: long, cylindrical charge distribution
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