## Guest

Abhishek Doyal
8 years ago
Abhishek doyal
IIT Bombay

8 years ago
The energy density, or energy per unit volume,$\frac{dU}{dV}$, of theelectrostatic fieldof a continuous charge distribution is:

Electric field at a distance r from the sphere is

Now for finding electrostatic energy we need to integrate energy density over the whole space from R to infinity to get the answer using the E above mentioned.

Thanks and Regards
Rahul kumar