Electrostatics - Charge Density

  • #1
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 :confused: :redface:

thanks
greetings
 

Answers and Replies

  • #2
Ben Niehoff
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Use Laplace's equation (derived from Gauss's Law):

[tex]-\nabla^2 \Phi = \rho / \epsilon_0[/tex]
 
  • #3
Meir Achuz
Science Advisor
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That's Poisson, not Laplace.
 
  • #4
Thanks, that helps a lot. :smile:

I knew Poissons equation, but I forgot it. :redface: Damn... :grumpy:

Greetings
 

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