Consider a uniform spherical charge distribution of radius  `R_(1)` centred at the orgin `O`.In this
Channel: Doubtnut
Date: 2020-08-23

Consider a uniform spherical charge distribution of radius  `R_(1)` centred at the orgin `O`. In this distribution a spherical cavity fo radius `R_(2)`, centred at `P` with distance  `OP = a = R_(1) - R_(2)` (fig) is made.If the electric field inside the  cavity at position `vec(r )`, then the correct statement is