what is the electric field intensity on the surface,at a point outside and at a point inside the non-conducting cylinder;having volume charge density 'p' and radius as 'r' ??

Dear Surabhi,

Cylindrical Conductor of Infinite length

Outside point

Inside point                    λ = linear density of charge
    E = 0        (as charges reside only on the surface)
Non-conducting cylinder having uniform volume density of charge

Infinite plane sheet of charge

 λ = surface charge density

Two oppositely charged sheets (Infinite)
(i)    Electric field at points outside the charged sheets
    EP = ER = 0
(ii)    Electric field at point in between the charged sheets

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