# Questions tagged [gauss-law]

A law in classical electromagnetism and Newtonian gravity which relates (charge) density to the divergence of a field, or alternatively the charge in a volume to the flux through the bounding surface.

1,317 questions
Filter by
Sorted by
Tagged with
31 views

### Unphysical solution to radial flow in a compressible fluid for Gaussian initial condition

Here's the problem I want to solve: a density of some fluid is moving radially outwards at constant velocity starting from a Gaussian initial condition, so the flux will be $\vec{j} = |V|\hat{r}$ and ...
22 views

### How is the time evolution of a Newtonian universe of infinite size that starts with constant mass density?

So, if we start with the description in the title, what happens in such universe (no internal stress, it is a continuum dust)? At first analysis, it seems it will remain that way, because symmetry ...
• 154
345 views

• 13
50 views

### On the impossibility of stable equilibrium of a charge in an electric field

I had read from my textbook that a positive charge cannot be in stable equilibrium as if we take a gaussian surface surrounding the charge then assuming that the charge is in equilibrium then using ...
31 views

### What's the net flux from sphere?

I have a sphere of radius "r" , the sphere has a total charge "q" distributed equally around the surface. A point "P" is at a distance "R" from the centre of ...
• 13