In a p-type semiconductor,
Correct answer: C. holes are the majority carriers and electrons are the minority carriers
- A. holes are the only carriers
- B. electrons are the only carriers
- C. holes are the majority carriers and electrons are the minority carriers
- D. electrons are the majority carriers and holes are the minority carriers
Explanation
on: (c) holes are the majority carriers and electrons are the minority carriersExplanation: In a p-type semiconductor, majority carriers are holes, which are positively charged vacancies in the valence band. Electrons from impurities or thermal energy contribute as minority carriers in p-type semiconductors.Incorrect Options and Explanations: (a) holes are the only carriers - While holes are the majority carriers, electrons also exist as minority carriers in a p-type semiconductor. (b) electrons are the only carriers - This is not correct for a p-type semiconductor. (d) electrons are the majority carriers and holes are the minority carriers - In a p-type semiconductor, holes are the majority carriers.
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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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