(Solved):
21. A thick spherical shell shown (Figure below) below carries charge density =r2k ar ...
21. A thick spherical shell shown (Figure below) below carries charge density ?=r2k?a?r?b. Find the electric field in the three regions: (i) r<a, (ii) a<r<b, (iii) r b. Answer: i) E=0. ii) E=?n?k?(r2r?a?)r^, iii) =?0?k?(r2b?a?)r^
We know that Spherically symmetric charge distribution is present. According to the above requirements, the mere fact that an is greater than r indicates that the system's overall charge is zero. Thus,