0
$\begingroup$

Lets say there is a uniform charge density throughout the entire space. At any point $P$, if I consider shells entered at $P$, the field at that point will be zero because according to Gauss Law, field inside a shell is zero.

But If I consider shells which are not centered at $P$, then the field is non zero. Why are the answers different?

$\endgroup$
  • 2
    $\begingroup$ If there is an uniform charge density everywhere then there will be an electric field. Every surface you will consider will contain some charge and thus you will have a non-zero flux on that surface. $\endgroup$ – FrodCube Jan 24 '17 at 20:48
  • 1
    $\begingroup$ The field inside an empty shell is zero. Your shells will have charge in them. $\endgroup$ – garyp Jan 24 '17 at 21:07
  • $\begingroup$ physics.stackexchange.com/q/39654 $\endgroup$ – Raziman T V Jan 24 '17 at 21:51
  • $\begingroup$ An infinite uniformly charged universe is mathematically inconsistent with Coulomb's law. $\endgroup$ – user126422 Jan 25 '17 at 2:28
4
$\begingroup$

There no unique solution to the problem you pose. The field inside a "uniform" charge distribution depends on what is going on far far away on the distant surface.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.