why do most modern books claim the divergence of the E field is ρ/ε[itex]_{0}[/itex] but in more classical books, and when you actually derive it mathematically you arrive at 4πρ(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Constants in the Divergence of E

**Physics Forums | Science Articles, Homework Help, Discussion**