The region in a p-n junction where charge carriers are not present is called
Correct answer: B. depletion region
- A. diffused region
- B. depletion region
- C. p-region
- D. n-region
Explanation
The depletion region is the region in a p-n junction where charge carriers (electrons and holes) are depleted or absent due to the migration of carriers across the junction. It is characterized by the absence of free charge carriers.Incorrect Options and Explanations: (a) diffused region - This term is not commonly used to describe the region where charge carriers are not present in a p-n junction. (c) p-region - The p-region is the region where holes (positive charge carriers) are predominant. (d) n-region - The n-region is the region where electrons (negative charge carriers) are predominant.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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