En=Eyf=PoR f,r>R. 4Epr In this region of space,the electric field points radially outward and has magnitudeR e2,>R,so it falls off as 1/r as we expect since outside the charg distribution,the sphere acts as if it all the charge were concentrated at the origin. 99 ! EII = EII rˆ = !0R3 4" 0 r 2 rˆ , r > R . In this region of space, the electric field points radially outward and has magnitude ! EII = !0R3 4" 0 r 2 , r > R , so it falls off as 1 / r 2 as we expect since outside the charge distribution, the sphere acts as if it all the charge were concentrated at the origin