\(\Psi = \int_S D \cdot e_n dA\), over a surface \(S\), where \(D\) is electric flux density and \(e_n dA\) is the vector surface element.
n3:latexSymbol
\(\Psi\)
n3:plainTextDescription
"Electric Flux" through an area is defined as the electric field multiplied by the area of the surface projected in a plane perpendicular to the field. Electric Flux is a scalar-valued quantity.