Charge e is uniformly spread on the surface of a sphere of radius 10^-10m. what is the total electrostatic energy of the system?

Total electrostatic energy of the system, PE = U =

Given:

radius of sphere, r =

electronic charge, e =

Solution:

The total electrostatic energy of the system for a uniformly spread charge e on the sphere is given by the potential energy of the system as:

PE = U =      

The above eqn can also be written as:

PE = U =      

Putting the values in the above eqn:

PE = U =

PE = U =