In p-n-p transistor the collector current is________________?
Correct answer: B. slightly less than emitter current
- A. equal to emitter current
- B. slightly less than emitter current
- C. greater than emitter current
- D. any of above
Explanation
The emitter current divides into collector and base currents according to Ie = Ic + Ib, so the collector current is slightly less than the emitter current. The likely mistake is choosing equal because the collector receives most of the carriers, but a small base current means the two currents cannot be exactly equal.
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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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