For half wave rectification, the number of diode needed in a circuit is:
Correct answer: A. 1
- A. 1
- B. 2
- C. 3
- D. 4
Explanation
Half-wave rectification allows only one half of the AC signal to pass through, which is achieved using a single diode. This diode conducts current only during one half of the AC cycle (either positive or negative), effectively blocking the other half. Therefore, only one diode is necessary to implement this process. The other options are incorrect because:Option B (2 diodes): This configuration is used for full-wave rectification, not half-wave.Option C (3 diodes): Three diodes are not applicable in standard rectification methods for half-wave.Option D (4 diodes): This is typical of a bridge rectifier setup, used for full-wave rectification, which is not relevant to the half-wave process.
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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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