What happens to the PN junction diode in the arrangement shown?
Correct answer: B. Depletion layer reduces
- A. Current flows freely
- B. Depletion layer reduces
- C. Very small leakage current flows
- D. Diode conducts heavily
Explanation
Here, the P-side is connected to negative and the N-side to positive, so the diode is reverse-biased. Reverse bias widens the depletion layer, preventing majority carrier flow. Only minority carrier leakage current flows.
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About Electronics
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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