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प्रश्न
Define the dielectric constant of a medium. What is its S.I unit?
टीपा लिहा
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उत्तर
Dielectric constant (or relative permittivity) of a dielectric is the ratio of the absolute permittivity of a medium to the absolute permittivity of free space.
`"K" = epsilon/epsilon_"o"`
It is a unitless quantity.
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