A thick spherical shell of charge Q and uniform volume charge density p? is boun

Question

A thick spherical shell of charge Q and uniform volume charge density p? is bounded by radii r1 and r2, where r2 > r1. With V = 0 at infinity, find the electric potential V as a function of the distance r from the center of the distribution, considering the following regions. (Use any variable or symbol stated above along with the following as necessary: e0 and p.)

Explanation / Answer

A think spherical shell of charge Q and uniform volume charge density p is bounded by radii r1 and r1 where r2>r1. WIth V=0 at infinity find the electric potential V as a function of the distance from the centre of the distribution considering the regions: a) r > r2 Ans. V = kQ/r because the spherical distribution will act like a point charge when any point is taken outside the shell, by Gauss Law b) r2 > r > r1 Ans. completely confused here...Using the concept in the first part a) i would think from the iner radii point of view Vsmall = kQ/r but since it is enclosed in a bigger radii i have no idea how to proceed c) r

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