The electric field inside a sphere of radius a which has a uniform positive charge distribution q is given by Ein (r) - q|r| 3€0 ↑ Calculate the electric flux through a spherical surface of radius b < a inside the sphere, first directly by evaluating the surface integral and then by using Gauss' theorem.

The electric field inside a sphere of radius a which has a uniform positive charge distribution q is given by Ein (r) - q|r| 3€0 ↑ Calculate the electric flux through a spherical surface of radius b < a inside the sphere, first directly by evaluating the surface integral and then by using Gauss' theorem.