Which of the following relationship holds in regards to energy gap in Conductor (EgC), insulator (Egi) and semiconductor (EgS)?
-
A.
EgS < EgC < Egi
-
B.
Egi < EgS < EgC
-
C.
Egi < EgC < EgS
-
D.
EgC < EgS < Egi
Correct Answer:
D. EgC < EgS < Egi
Explanation:
The energy gap, or band gap, represents the energy range in a solid where no electronic states can exist. In conductors, the valence and conduction bands overlap, meaning the energy gap (EgC) is effectively zero. In semiconductors, there is a small energy gap (EgS) that allows for some electron flow under certain conditions. In contrast, insulators possess a very large energy gap (Egi), preventing electrons from easily moving into the conduction band. Therefore, the correct relationship is EgC < EgS < Egi, which corresponds to option D.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.