NTA Abhyas JEE Main2020PhysicsElectrostaticsPractice
In between two point charges a conducting spherical shell having charge Q is placed as shown in the diagram. Assuming all charges to be positive, mark out the correct statement.
Options
- Athe charge on outer surface of shell is uniformly distributed
- Bthe charge on outer surface of shell is non-uniformly distributed
- Cthe information is insufficient to find the nature of charge distribution on the outer surface
- Dnone of these
Correct answer
B. the charge on outer surface of shell is non-uniformly distributed
Step-by-step solution
To solve this question we have to use the concept that "the resultant electric field at any point inside a conducting shell due to all outside charges is zero, " and that "E at any internal point due to uniformly charged conducting spherical shell is zero." Consider any point P inside the shell, at P the resultant electric field due to I, II and charge on outer surface of shell must be zero. E P = E I + E II + E outer   surface   charge = 0 But E I + E II ≠ 0 . So E outer surface charge ≠ 0 it means charg