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## Main Question or Discussion Point

i know that the flux through a sphere with a point charge at the center is non-zero [tex]\left( \frac{q}{\epsilon_0}\right) [/tex] but if I wanted to calculate this using Guass's law I would take the divergence of [tex] E=\frac{q}{4\pi\epsilon_0r^2}\hat{r}[/tex] which is 0 so I would get the flux to be 0. What am I doing wrong?

Thanks.

Thanks.