In an n type semiconductor, the minority carriers are
Correct answer: B. holes
- A. electrons
- B. holes
- C. protons
- D. positive ions
Explanation
Doping supplies a large number of electrons, but thermal generation still creates a small population of holes, and these minority carriers are what produce the leakage current in a reverse biased junction. Their number rises steeply with temperature, which is why semiconductor devices become unreliable when they overheat. In p type material the roles are exactly reversed.
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About PN Junction
A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.
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