Which one of the following is not a semi-conductor?
Correct answer: C. Diamond
- A. Silicon
- B. Germanium
- C. Diamond
- D. Gallium
Explanation
Diamond is a form of carbon and is classified as an insulator in its pure form. Its crystal structure doesn't inherently possess the characteristics of a semiconductor. It has a wide band gap, similar to that of insulators, which restricts the movement of electrons, preventing them from easily transitioning from the valence band to the conduction band to conduct electricity.
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