Enter the permittivity of the substance and the permittivity of a vacuum into the calculator to determine the dielectric constant.
Dielectric Constant Formula
The following formula is used to calculate a dielectric constant.
k = E / E0
- Where k is the dielectric constant
- E is the permittivity of the substance
- E0 is the permittivity of a vacuum. (8.8541878128(13)×10−12 F⋅m−1 )
In the case of this formula, permittivity can be swapped out for capacitance of the substance or system, and capacitance in a vacuum.
In simple terms, a dielectric constant is a measure of the relative permittivity of an object when compared to a vacuum.
Permittivity is a measure of how much polarizability a given dielectric has. In other words, how much energy it can store when exposed to an electric field.
A dielectric is a substance or object that acts as an electrical insulator. When exposed to an electric field it becomes polarized, thus store energy.
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