Physics Electronics PMC 2021
PMDC Verified Question 476 of 494

A basic half-wave rectifier passes only the:
A
Upper half-cycle
B
Lower half-cycle
C
Both half-cycles
D
None of these
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Upper half-cycle
Concept:

A half-wave rectifier operates by selectively allowing only half of the input AC waveform to pass to the load.

Solution:

Under standard conventional setups, the diode is arranged to be forward-biased during the positive phase. It therefore permits only the positive (upper) half-cycle of the wave to pass while completely cutting off the negative (lower) half-cycle.

Why other options are incorrect:

  • Passing both half-cycles describes a full-wave rectifier.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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