Question

What is meant by electric flux density?

Answer 1

1. Electric flux is the measure of the electric field through a given surface, although an electric field in itself cannot flow. It is a way of describing the electric field strength at any distance from the charge causing the field.
2. Electric flux density is the electric flux passing through a unit area perpendicular to the direction of the flux.
3. The equation of an electric flux density can be written as: $D=\frac{\varphi }{A}$
   where $D$is the electric flux density, $\varphi$is the electric flux, $A$is the area of the surface
4. The equation of an electric flux density can be written as: $D={\epsilon }_0{\epsilon }_{r}E$
   where ${\epsilon }_0$ is the permeability of the free space, ${\epsilon }_r$ is the relative permeability. ,$E$ is the electric flux intensity.
5. The strength of an electric field generated by a free electric charge is measured by the electric flux density.