Identify a good dielectric.(a) Iron(b) Ceramics(c) Plastic(d) MagnesiumI got this question in an interview.My question is from Dielectrics in chapter Electric Fields in Material Space of Electromagnetic Theory

Identify a good dielectric.(a) Iron(b) Ceramics(c) Plastic(d) Magnesiu

1.	Identify a good dielectric.(a) Iron(b) Ceramics(c) Plastic(d) MagnesiumI got this question in an interview.My question is from Dielectrics in chapter Electric Fields in Material Space of Electromagnetic Theory
Answer» The CORRECT answer is (b) CERAMICS To explain I WOULD say: Iron and magnesium are metals. Hence they need not be considered. Both ceramics and plastic are INSULATORS. But dielectric constant is more for ceramics always. Hence ceramics is the BEST dielectric.

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