Engineering Board Exam Reviewer · Engineering Materials · medium
Materials in which the valence band and conduction band overlap, allowing easy electron flow, are:
- Conductors (metals)
- Insulators
- Intrinsic semiconductors
- Dielectrics
Answer
A. Conductors (metals)
Solution
Insulators have large band gaps (> 4 eV); semiconductors have small band gaps (~1 eV).
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