- #1
Ahmed1029
- 109
- 40
According to Helmholtz’s theorem, if electric charge density goes to to zero as r goes to infinity faster than 1/r^2 I'm able to construct an electrostatic potential function using the usual integral over the source, yet I don't understand how this applies to a chunk of charge in some region of space, regarding how fast its charge density does to zero. For instance, suppose I only have a small sphere of charge, how fast does does charge density go to zero as r goes to infinity?