Which of the following is not true about the electric field intensity \vec{E} of a uniformly charged solid sphere?

a {E} is maximum at the surface of the sphere
b E} is directly proportional to the distance from the centre of the sphere
c {E} decreases as a square of the distance from the surface of the sphere
d {E} decreases as a square of the distance from the centre of the sphere.

Question

Which of the following is not true about the electric field intensity \vec{E} of a uniformly charged solid sphere?

a {E} is maximum at the surface of the sphere
b E} is directly proportional to the distance from the centre of the sphere
c {E} decreases as a square of the distance from the surface of the sphere
d {E} decreases as a square of the distance from the centre of the sphere.

vincent-lyon.fr · Answer

Have you plotted E(r)? Answer should be clear.

anonymous · Answer

i dont get you @Vincent-Lyon.Fr

anonymous · Answer

|dw:1360067328577:dw|

anonymous · Answer

@Diwakar so what is the answer to the question

anonymous · Answer

Electric field varies linearly upto radius R and varies as 1/r^2 outside the sphere.
So option D saying "field decreases as square of distance from the center" is incorrect.