# Permittivity Calculation

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**Formula:**`ε = ε`

_{0} × ε_{r}

## Introduction to Permittivity Calculator

The permittivity of a material is a measure of its ability to resist the formation of an electric field within it. The total permittivity **(ε)** is the product of the vacuum permittivity **(ε _{0})**, which is a constant approximately equal to

`8.854187817 × 10`^{-12} F/m

(farads per meter), and the relative permittivity or dielectric constant of the material **(ε**.

_{r})## Parameter usage:

`epsilon_r`

= relative permittivity of the material

## Output:

`permittivity`

= total permittivity of the material in farads per meter squared

## Data validation

The relative permittivity must be a positive number representing the comparison to the permittivity of free space.

## Practical Applications

Permittivity is a crucial parameter in designing capacitors and understanding the behavior of materials in electric fields, such as in insulation and polarization applications.

Tags: Physics, Electricity, Permittivity, Dielectric