CBSE 2023 · Region 3 · Set 1 · Q25 · 2 marks
Explain the property of a p-n junction which makes it suitable for rectifying alternating voltages. Differentiate between a half-wave and a full-wave rectifier.
Marking-scheme solution
pn-junction conducts in forward bias.
Alternatively:-pn-junction is a uni-directional device.
The half-wave rectifier gives output only for half of the input cycle .The fullwave rectifier gives output for both the halves of the input cycles.
Alternatively:-If output waveform of both the rectifiers shown diagrammatically, then
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.