In a uniformly charged sphere of total charge Q and radius R, the electric field E is plotted as a function of distance from the centre. The graph which would correspond to the above will be

Options

A.
B.
C.
D.

Answer

C

Explanation

Electric field inside the uniformly charged sphere varies linearly, `E=(kQ)/R^3 .r (r lre R)`, while outside the sphere, it varies as inverse square of distance, `E=(DQ)/r^2, (r ge R)`which is correctly represented in option (C).