COMEDK · Physics · 30. Semiconductors
In the energy band diagram of a material shown below, open circles and filled circles denote holes and electrons respectively. The material is a
- A p-type semiconductor
- B n-type semiconductor
- C metal
- D insulator
Answer & Solution
Correct Answer
(A) p-type semiconductor
Step-by-step Solution
Detailed explanation
The energy band diagram shows a valence band (lower) and a conduction band (upper) separated by an energy gap \(E_g\). In the valence band, there are both filled circles (electrons) and open circles (holes). The presence of holes in the valence band indicates that some electrons…
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