The number of terminal(s) in a transistor is
Correct answer: D. four.
- A. one.
- B. two.
- C. three.
- D. four.
Explanation
Transistors have four terminals in total, which include the emitter, base, collector, and sometimes the substrate terminal. Options A, B, and C are incorrect as transistors do not have one, two, or three terminals, respectively.
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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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