The electric field E due to a charged spherical object of radius R is found to be zero for r R (where r is the distance from the centre of the object). Which of the following objects could produce this electric field profile?

Step-by-step solution

For r For r > R , the electric field is proportional to 1 r^2 , which is characteristic of a spherical charge distribution where the entire charge can be assumed to be concentrated at the centre. In both a hollow conducting sphere and a solid conducting sphere, any excess charge resides entirely on the outer surface. Therefore, the electric field inside ( r R ) it follows the inverse-square law. In contrast, a uniformly charged solid non-conducting sphere has charge distributed throughout its volume, so its interna