A non-conducting spherical shell of inner radius R1 and outerradius R2 contains a uniform volume charge density p through theshell. Use Gauss's Law to derive an equation for the magnitude ofthe electric field at the following radial distances r from thecenter of the sphere. Your answer should be in terms of p,R1,R2,rEo, and pi.
a). r < R1
b.) R1 c.) r>R2