In half-wave rectification the output D.C. voltages is obtained across the load for_______________?
Correct answer: B. The positive half cycle of A.C.
- A. The negative half cycle of A.C.
- B. The positive half cycle of A.C.
- C. The positive and negative half cycles
- D. Either positive or negative half of A.C.
Explanation
In a half-wave rectifier, the diode conducts during only one half-cycle and blocks the other half-cycle, producing output across the load during either the positive or the negative half-cycle depending on diode orientation. With the usual orientation shown in basic circuits, conduction occurs during the positive half-cycle, giving option b; option d is the general statement for reversed orientation, but the standard convention is positive.
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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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