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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?
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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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