Question

The electric flux through an area dA for an electric field E is given by

Answer 1

Electric flux:

1. The rate at which an electric field flows across a specific region is called electric flux.
2. The electric flux is determined by the number of electric field lines that travel through a virtual surface.
3. The electric flux over a surface A is equivalent or comparable to the dot product of the electric field and the area vectors E and A.
4. This same dot product of two vectors is the combination of their magnitudes multiplied either by the cosine of their angle.

Mathematically, electric flux can be represented as:

$\mathrm{\Phi }=\mathrm{E}.\mathrm{dA}$

Here,

$\mathrm{\varphi }$ is the electric flux.

$\mathrm{E}$ is the electric field.

$\mathrm{dA}$ is the area of the surface.