Epics spherical shell carry charge density charge density equal to k by r square. find the electric field in the three regions

i can show you that integral from 0 to pi sin theta is = 2, you can calculate it bro. Next is integral from zero to 2pi for Phi=1 term = 2. therefore 2*2pi = 4pi. are u clear after...

Gauss law is always useful for symmetric bodies such as sphere, cylindrical and infinite rectangular sheet. For innermost region, charge enclosed in the Gaussian surface is zero, t...

solution with the required explanation of why charge is distributed and here with explanation.

solution.... hope u will get it...