Electric Flux Definition
Electric flux is the measure of electric field lines passing through a given closed surface. It is a scalar quantity, representing the total number of electric field lines passing through a given surface.
Formula of Electric Flux
Electric flux depends on the strength of the electric field lines, the area of the surfaces, and the orientation between the surface area and the electric field lines. The formula to calculate electric flux is given as:
Φ = E • A
OR
Φ = E A cos θ
Where,
- Φ denotes the electric flux,
- E denotes the electric field strength,
- A denotes the area of the closed surface, and
- θ denotes the angle between the electric field lines and the area vector
Unit of Electric Flux
SI unit of Electric Flux is volt-meter (V⋅m). Electric flux is a concept in electromagnetism that describes the flow of an electric field through a given area. It is a measure of the amount of electric field that penetrates a surface or the number of electric field lines passes through that surface.
In this article, we will learn about the basics of electric flux, its SI unit, and the conversion between various units of electric flux.