Permittivity of Free Space

What is Permittivity of a Material?

The permittivity of free space, often denoted by the symbol ε₀ (epsilon naught), is a physical constant that represents the ability of a vacuum or free space to permit the transmission of electric field lines.

What is Permittivity in Simple Words?

Permittivity refers to how easily electric fields can pass through a material or space. It’s like a measure of how much a substance allows electric fields to spread or exist within it.

What is the Value of Permittivity in Free Space?

In free space, the permittivity is represented by ε₀ (epsilon naught) and its value is a fundamental constant approximately equal to 8.854 × 10^-12 farads per meter (F/m).

What is the Unit of Permittivity of Space?

The unit of permittivity depends on the system of units being used. In the International System of Units (SI), the unit of permittivity is the farad per meter (F/m).

What is the Permittivity of Air?

About 1.0006 times that of a vacuum i.e., 8.859 × 10^-12 F/m, but slightly varies with temperature & humidity.

What is the Dimensional Formula for Permittivity of Free Space?

The permittivity of free space or vacuum is dimensionally represented as M^-1 L^-3 T⁴ I².

What is Meant by Permeability of Free Space?

The permeability of free space, often denoted as μ₀ (mu naught), is a physical constant representing the ability of a vacuum to permit the flow of magnetic field lines.

What is the difference between Permittivity and Permeability of Free Space?

Permittivity and permeability are properties of a medium in the presence of electric and magnetic fields, respectively. Permittivity (ε) relates to electric fields, while permeability ( μ) relates to magnetic fields.

How to calculate permittivity?

To calculate the permittivity of a material, you compare the capacitance of a capacitor filled with the material between its plates to the capacitance of an identical capacitor with free space between its plates.

What is an example of permittivity?

Permittivity can be observed in capacitors. Capacitors store electrical energy by maintaining an electric field between two conductive plates separated by a dielectric material. The permittivity of the dielectric material determines how much electric field can be stored for a given voltage across the plates.

Permittivity of Free Space or Permittivity of Vacuum is the property of material that measures the material’s ability to resist the formation of an electric field within it or to permit the passage of electric flux in a vacuum, as the resistivity offered by the free space is the lowest.

Permittivity of Free Space is introduced to students in class 12. In this article, we will explore the concept of Permittivity of Free Space in detail, including its definition, value, and formula.