The GATE Grind

GATE 2020 MT – Question 14

Materials Science and Non-Metallic Materials · Electronic and magnetic properties · 1 mark · Multiple choice

A dielectric material is an

  1. Electrical conductor
  2. Metallic magnet
  3. Pair of coupled electrical conductors
  4. Electrical insulator

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Correct answer: (D) Electrical insulator

Explanation

A dielectric supports electric polarization while suppressing free charge transport under ordinary conditions. It is therefore an electrical insulator, D. Dielectric response concerns bound-charge displacement and polarization; it does not require metallic conduction or magnetic ordering.

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