Читать книгу Introduction To Modern Planar Transmission Lines - Anand K. Verma - Страница 144

Total electric flux coming out of a closed surface = Total charge enclosed inside the volume of a closed surface, i.e.

(4.1.2)

The above expression is the integral form of Gauss’s law. It can be converted to the differential form by using Gauss’s vector integral identity,

(4.1.3)