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Question 20222
JEE Physics · Easy

Semiconductors: Half-Wave Rectifier MCQ

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Half-Wave RectifierEasyQuestion 20222

Question

A half-wave rectifier uses:
  1. A
    4 diodes in a bridge
  2. B
    1 diode and conducts for only one half-cycle
    Correct
  3. C
    2 diodes
  4. D
    A capacitor only

Correct answer

1 diode and conducts for only one half-cycle

Explanation

Half-wave: 1 diode passes either positive or negative half of AC cycle. Output is pulsating DC at supply frequency. Efficiency = 40.6%. Full-wave uses 2 (centre-tap) or 4 diodes (bridge) and rectifies both halves → higher efficiency (81.2%).

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