## Electrostatics - Charge Density

Hi,

if we only have an electrostatic potential given. How to calculate the charge density?

I know of course Maxwell equation, here without any time dependence, but I missed always some further specifications, or I forget something important

thanks
greetings
 PhysOrg.com physics news on PhysOrg.com >> Scientists moving 15-ton magnet from NY to Chicago>> California scientist still reinventing the wheel at 94>> Romania, EU launch works on world's most powerful laser
 Recognitions: Science Advisor Use Laplace's equation (derived from Gauss's Law): $$-\nabla^2 \Phi = \rho / \epsilon_0$$
 Recognitions: Science Advisor That's Poisson, not Laplace.

## Electrostatics - Charge Density

Thanks, that helps a lot.

I knew Poissons equation, but I forgot it. Damn...

Greetings

 Similar Threads for: Electrostatics - Charge Density Thread Forum Replies Introductory Physics Homework 1 Introductory Physics Homework 1 Introductory Physics Homework 8 Classical Physics 1 Introductory Physics Homework 3