Multiple choice general knowledge science & technology

Mica is used in electrical appliances such as electric iron because mica is

  1. a good conductor of heat but a bad conductor of electricity

  2. a bad conductor of heat but a good conductor of electricity

  3. good conductor of heat as well as electricity

  4. a bad conductor of heat as well as electricity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mica transfers heat efficiently from the heating element while blocking electric current. This dual property makes it ideal for isolating the heating component electrically while conducting thermal energy to the surface.

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