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A long charged cylinder of linear charge...

A long charged cylinder of linear charge density `lambda` is surrounded by a hollow co-axial conducting cylinder. What is electric field in the space between the two cylinders?

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Charge density `=lambda`. The flux calculated for a cylinderical surface of radius r, over a length l is E. `2pi rl`.
By Gauss theorem, `E.2pi rl=(l lambda)/(epsi_(0))`
`E=lambda/(2pi epsi_(0)) or vecE=(lambda)/(2pi epsi_(0)) hatn`
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