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In a conductor
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- there is no conduction band
- the forbidden energy gap is very wide
- the forbidden energy gap is very narrow
- the valence band and the conduction band overlap each other
- there is no conduction band
Correct Option: D
In the case of a conductor, there is no forbidden energy gap. The conduction and valence energy bands overlap each other. Obviously, the electrons from the valence band can freely enter the conduction energy band.
