Question

The minimum value of relative permittivity is?
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Answer 1

Air or vacuum has minimum value of permittivity. The absolute (or actual) permittivity of air or vacuum is 8.854 x 10-12 C2 N-1 m-2. The absolute permittivity ε of all other insulating materials is greater than ε0. The ratio ε / ε0 is called relative permittivity of the material and is denoted by K (or εr).

Answer 2

Air or vacuum has minimum value of permittivity. The absolute (or actual) permittivity of air or vacuum is 8.854 x 10^(-12) C² N^(-1) m^(-2). The absolute permittivity ε of all other insulating materials is greater than ε0. The ratio ε / ε0 is called relative permittivity of the material and is denoted by K (or εr).