The charge carriers inside an n-type semiconductor material are
Correct answer: D. Electrons.
- A. Holes.
- B. Protons.
- C. Positrons.
- D. Electrons.
Explanation
In an n-type semiconductor, the material is doped with donor atoms that have more valence electrons than the semiconductor material itself. This results in an excess of free electrons, which are the primary charge carriers. Thus, electrons facilitate electrical conduction in n-type materials.Other options are incorrect as:Holes are charge carriers in p-type semiconductors, not n-type.Protons are not mobile within the semiconductor lattice; they remain within atomic nuclei.Positrons do not exist naturally in semiconductors and are not responsible for conduction.
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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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