Draw a plot showing variation of electric field (E) with distance r
(i) due to a point charge Q. (2012)
(ii) due to linear charge
(iii) due to infinitely long plane sheet
(iv) due to spherical shell

Dear student,
(i)variation of electric field (E) with distance r due to a point charge q. 

(ii)variation of electric field (E) with distance r due to linear charge


(iii) variation of the electric field (E) with distance r due to infinitely long plane sheet

The electric field at a distance from an infinite conducting sheet carrying uniform charge density is given by $\frac{\sigma }{2{\epsilon }_0}$​. Thus, it is independent of r.
(iv)variation of electric field (E) with distance r due to spherical shell


Regards.