Define dielectric constant of a medium. What is its $S . I$ . unit?

Question

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Answer 1

The Dielectric constant (K) of the medium is the ratio of the permittivity of the substance (\varepsilon) to permittivity of the free space $(ε_{0}) .$
i.e $K = ε / ε_{0}$
As Permittivity of medium and permittivity of free space both have same units(F/m ie Farad/meter) dielectric constant becomes dimensionless quantity.

Answer 2

The Dielectric constant (K) of the medium is the ratio of the permittivity of the substance (\varepsilon) to permittivity of the free space $(ε_{0}) .$

i.e $K = ε / ε_{0}$

As Permittivity of medium and permittivity of free space both have same units(F/m ie Farad/meter) dielectric constant becomes dimensionless quantity.

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