The maximum efficiency of a half-wave rectifier is:
Correct answer: B. 40.6%
- A. 80.6%
- B. 40.6%
- C. 70%
- D. 50%
Explanation
The maximum efficiency of a half-wave rectifier is about 40.6%. This is because it only utilizes one half of the AC waveform, leading to significant power loss. In contrast, a full-wave rectifier uses both halves of the waveform and has a maximum efficiency of about 81.2%, which is twice that of a half-wave rectifier. The incorrect options either overestimate the efficiency or are closer but still incorrect.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Electronics
660 free Electronics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Rectification questions
Half wave rectifier passes only:
If a half-wave rectifier is used to convert 50 Hz AC into DC, then the number of pulses present in the rectifier voltage is:
The semiconductor diode can be used as a rectifier because _______________?
The rectifier is a device that converts:
The minimum number of diodes required for full wave rectification are:
In a half wave rectifier, the diode conducts: