Electric field inside a uniformly charged solid sphere .

[hangainlover]

Homework Statement

It is just a conceptual question.
I learned that all charges tend to move toward outer surface, meaning all the charges of the solid sphere will be on the surface of the solid sphere.
Then, why is it that the electric field increases linearly with distance? shouldn't it be just 0? the same as hollow sphere or a charged ring.

Homework Equations

The Attempt at a Solution

 

[rl.bhat]

all the charges of the solid sphere will be on the surface of the solid sphere
provided the sphere is a conductor. For uniformly charged non-conducting sphere, the electric field in side the sphere increases linearly with distance from the center.