The two transistor are P-n-P transistor and _.
Correct answer: A. n-P-n transistor
- A. n-P-n transistor
- B. n-n-p transistor
- C. p -p-n transistor
- D. None of these
Explanation
PNP and NPN refer to the two main types of transistors based on the arrangement of their semiconductor materials:1. NPN Transistor: In an NPN transistor, the arrangement consists of a layer of lightly doped (low concentration of charge carriers) p-type semiconductor material sandwiched between two layers of heavily doped (high concentration of charge carriers) n-type semiconductor material. The current flows from the collector (which is positively charged) to the emitter (negatively charged) through the base region, which is positively charged.2. PNP Transistor: In a PNP transistor, the arrangement is reversed, with a layer of lightly doped n-type semiconductor material sandwiched between two layers of heavily doped p-type semiconductor material. In this configuration, the current flows from the emitter (positively charged) to the collector (negatively charged) through the base region, which is negatively charged.
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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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