# Electric field inside conductor is zero though we are getting $E$ inside Solid Sphere

I know that the electric field inside a perfect conductor is zero as all the charges resides on its surface to minimize its energy but if it's true then why we are still getting the electric field inside a solid sphere (having radius $$R$$) $$E\propto r$$, where $$r$$ is the radius of the Gaussian sphere inside the solid sphere $$(i.e. r < R)$$?

Why it is not zero?

• You should include some references or try to explain you question better. If the solid sphere is a conductor you cannot have electric field inside of it. The reason for this is that, if there was any electric field, the charges inside the sphere would move. This would keep going until a static situation is achieved. This is not true if the sphere is non-conducting. Commented Jan 3, 2021 at 12:08

(b) The solid sphere in which E is radial and its magnitude is proportional to $$r$$ is not a conducting sphere, but a sphere made of a non-conducting material with a uniform charge density (carrying a uniform charge per unit volume).