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A diode in half-wave rectifier produces output for:

AContinuous
BOnly one (positive) half cycle of AC; other half blocked
CBoth half cycles
DDC always
Answer & Solution
Correct answer: B. Only one (positive) half cycle of AC; other half blocked
**Half-wave:** single diode conducts only when AC is in forward direction reverse half cycle blocked. **Output:** pulsating DC with gaps. Efficiency low. Full-wave uses 2 diodes (or bridge of 4) for both halves.
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