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In metals, the total permittivity is(a) Absolute permittivity(b) Relative permittivity(c) Product of absolute and relative permittivity(d) UnityThis question was posed to me in homework.I'd like to ask this question from Plane Waves in Good Conductor topic in portion EM Wave Propagation of Electromagnetic Theory

Answer»

Correct CHOICE is (a) Absolute permittivity

Easiest explanation: The total permittivity is the product of the absolute and the relative permittivity. For METALS or CONDUCTORS, the relative permittivity is unity. Thus the permittivity is SIMPLY the absolute permittivity.



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