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Physics 14 Online
OpenStudy (anonymous):

An infinite cylindrical shell of radius a has a uniform surface charge density (sigma). What is the electric field at a pont a distance r>a away from the axis of cylinder?

OpenStudy (vincent-lyon.fr):

Apply Gauss law to another cylindrical shell of radius r.

OpenStudy (anonymous):

what length should i used?

OpenStudy (vincent-lyon.fr):

Any arbitrary length h. It will disappear from the expression at the end.

OpenStudy (anonymous):

|dw:1397913335033:dw| Spherical guassian surface is more preferred.

OpenStudy (anonymous):

|dw:1397914936780:dw|

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