The ripple frequency at the output of a full wave rectifier fed from a 50 Hz supply is
Correct answer: C. 100 Hz
- A. 25 Hz
- B. 50 Hz
- C. 100 Hz
- D. 200 Hz
Explanation
Both halves of each cycle produce an output pulse, so there are two pulses per input cycle and the ripple appears at twice the supply frequency. A half wave rectifier would give ripple at 50 Hz instead. The higher ripple frequency is one reason full wave output is easier to smooth.
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About Rectification
Rectification converts alternating current into unidirectional current using semiconductor diodes. The content includes half wave and full wave rectifiers, bridge circuits, output waveforms, ripple and smoothing with capacitors, with the difference between rectification and voltage regulation kept clear.
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