# Electric Field Problem

1. Sep 8, 2008

### Crazy Gnome

1. The problem statement, all variables and given/known data

An electric field in the region r>a is given by Er=2ACos($$\vartheta$$)/r3, E$$\vartheta$$=Asin($$\vartheta$$)/r3, E$$\psi$$=0 where A= constant. Find the Volume charge density in the region.

There is not picture.

I am really lost on this one.

2. Sep 8, 2008

### Defennder

From what I can read, it seems like you gave the E field in spherical basis vectors. But the method involved doesn't depend on any coordinate basis. Just ask yourself what is another interpretation for div(D).