Majority carriers in a semiconductor are
Correct answer: C. electrons in n-type and holes in p-type
- A. holes in n-type and electrons in p-type
- B. holes in both n-type and p-type
- C. electrons in n-type and holes in p-type
- D. electrons in both n and p-type
Explanation
In an n-type semiconductor, the majority carriers are electrons, while in a p-type semiconductor, the majority carriers are holes. Electrons are the majority carriers in n-type semiconductors because of the presence of donor impurities, and holes are the majority carriers in p-type semiconductors due to the acceptor impurities.
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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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