Electric Flux: FAQs
1. Explain Electric Flux.
Electric flux is a measure of the total number of electric field lines passing through a given area. It is the measure of the strength of an electric field passing through a surface.
2. How to Calculate Electric Flux?
Electric flux (Φ) through a surface can be calculated as the dot product of the electric field (E) passing through the surface and the surface area (A) i.e.,
Φ = E • A = E A cos θ
3. What is the Unit of Electric Flux?
The SI unit of electric flux is the Volt-meter (V⋅m).
4. Define Electric Flux Density.
Electric Flux Density (D) is a measure of electric flux per unit area. It represents the electric field strength in a material, indicating how much electric flux passes through a given area.
5. What is the Dimensional Formula for Electric Flux?
The dimensional formula for electric flux is [ML3T-3A-1].
6. Can Electric Flux be Zero?
Yes, electric flux can be negative. It depends on the orientation of the surface with respect to the electric field.
7. What Does a Positive or Negative Sign in Electric Flux Indicate?
A positive electric flux indicates that the electric field is penetrating the surface in the direction of the normal to the surface, while a negative electric flux implies that the electric field is leaving the surface or penetrating in the opposite direction.
What is Electric Flux?
Electric flux is a fundamental concept in physics that helps us understand and quantify the electric field passing through a given surface. It provides a means to describe the flow of electric field lines through an area. Electric flux forms the basis of Gauss’s Law, to calculate the net charge enclosed inside a given Gaussian surface, which says that the flux through a surface will be the result of the total (or net) charge enclosed inside it.
In this article, we will learn about the basics of electric flux, its types, electric flux density, and electric flux through various types of surfaces.
Table of Content
- What is Electric Flux?
- Electric Flux Formula
- Properties of Electric Flux
- Electric Flux Through Different Surfaces
- What is Electric Flux Density?