1. Tardigrade
  2. Question
  3. Physics
  4. Assertion: If there is some gap between the conduction band and the valence band, electrons in the valence band all remain bound and no free electrons are available in the conduction band. Then the material is an insulator. Reason: Resistance of insulators is very low.

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Q. Assertion : If there is some gap between the conduction band and the valence band, electrons in the valence band all remain bound and no free electrons are available in the conduction band. Then the material is an insulator.
Reason : Resistance of insulators is very low.

Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

If there is some gap between the conduction band and the valance band electrons in the valance band all remain bound and no free electrons in conduction band then it makes the material an insulator. Resistance of insulators is very high.