In full wave rectifier with input frequency 50 Hz the ripple in the output is mainly of frequency:
Correct answer: C. 100 Hz
- A. 25 Hz
- B. 50Hz
- C. 100 Hz
- D. Zero
Explanation
In full wave rectification ripple frequency is twice the input frequency. Whereas, for a half wave rectifier it is equal to the AC supply frequency. For full wave rectification = 2× f = 2 × 50 Hz = 100Hz A half-wave rectifier conducts when the alternating current is positive, which happens during 180° of the A.C cycle, and blocks current during the other 180 degrees. A full-wave rectifier conducts during both 180° periods of an A.C cycle; So you can see, it conducts current for twice the amount of time. The full-wave rectifier has twice the efficiency of a half-wave rectifier is, that it utilizes both half-cycles of the input. In a half-wave rectifier, the time interval between two consecutive peaks of the output voltage waveform is the time period of the input supply waveform. In a full-wave rectifier, the time interval between two consecutive peaks of the output voltage waveform is half of the time period of the input supply waveform.
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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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