Multiple choice

Which of the following substances is a bad conductor of electricity, but a good conductor of heat?

  1. Asbestos

  2. Celluloid

  3. Purspecsys

  4. Mica

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mica is an excellent thermal conductor but poor electrical conductor due to its layered silicate structure - heat transfers efficiently through the crystal lattice, but electrons cannot move freely. This unique combination makes it valuable as electrical insulator in high-heat applications like toasters.

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