Which one diodes is reverse biased?
Correct answer: C. III
- A. I
- B. II
- C. III
- D. IV
Explanation
Correct option is C) Current only flows from a higher potential to a lower potential. Also, the ends of the circuit that are grounded remain at zero potential. In cases (I), (II) & (IV), the diodes are connected in the forward bias. In case (III), the p - side is connected to the lower potential, and n - side is connected to the higher potential, suggesting that the diode is in reverse bias.
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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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