An n-type substance is:
Correct answer: A. Electrically neutral
- A. Electrically neutral
- B. Negatively charged
- C. Positively charged
- D. None of these
Explanation
p-type and n-type semiconductors are formed when impurity atoms, which are themselves electrically neutral, are added to a pure semiconductor that is also electrically neutral. Therefore, the p- or n-type semiconductor formed is electrically neutral.
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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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