In the given NPN transistor diagram, the minority carriers are
Correct answer: C. Electrons.
- A. Ions.
- B. Holes.
- C. Electrons.
- D. Molecules.
Explanation
In an NPN transistor, the base is made of p-type material, where holes are the majority carriers. However, the minority carriers in this region are electrons, which are injected from the n-type emitter. This is why electrons are the correct answer as the minority carriers in an NPN transistor. Holes are the minority carriers in PNP transistors, ions are not relevant to this context, and molecules do not pertain to semiconductor charge carriers.
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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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