Now consider the insulating sphere. shown in cross section (and colored orange) in Figure 2 below. The shell has radius a. and is centered at the position :1: = 20 on the Xeaxis. The shell has a. uniform volume charge density -p. )' Figure 2 (3) Use the results for the Eeld of a solid spherical insulator (derived in the F lipit 3' Gauss's Law" Prelecture) to determine expressions for the Eeld of this sphere on the X~axis in the form Eh) : Eli in the regions (01> 3a (ii) 20.