MHT CET202522 Apr 2025Morning ShiftPhysicsSemiconductorsActual
If an alternating voltage is applied across a p-n junction diode in series with a load then
Options
- Ano voltage appears across load.
- Ba pulsating voltage appears across load.
- Can a.c. voltage appears across load.
- Da d.c. voltage appears across load which is not pulsating.
Correct answer
B. a pulsating voltage appears across load.
Step-by-step solution
An alternating voltage applied across a p-n junction diode in series with a load produces rectification due to the diode's unidirectional conduction properties. During the positive half-cycle, the diode is forward biased, allowing current to flow through the load and producing a voltage output. During the negative half-cycle, the diode is reverse biased, blocking current flow and resulting in zero voltage output. The resulting waveform consists of positive half-cycles only, forming a pulsating DC voltage across the