Rectifier
Mediumphysics
A full-wave rectifier converts AC into:
Select the correct option:
Solution
Incorrect! Answer:
Pulsating DC
A rectifier is a device that converts Alternating Current (AC) which reverses direction, to Direct Current (DC) which flows in only one direction.
- A full-wave rectifier uses both cycles of the AC input to produce a unidirectional output.
- However, the output is not a steady constant value; it varies with time in a series of peaks and valleys (sinusoidal pulses).
- This results in pulsating DC. To get a smooth, steady DC voltage, 'filter' circuits (using capacitors/inductors) are needed.
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About This Question
- Subject
- physics
- Chapter
- semiconductor electronics
- Topic
- rectifier
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Pulsating DC
A rectifier is a device that converts Alternating Current (AC) which reverses direction, to Direct Current (DC) which flows in only one direction.
- A full-wave rectifier uses both cycles of the AC input to produce a unidirectional output.
- However, the output is not a steady constant value; it varies with time in a series of peaks and valleys (sinusoidal pulses).
- This results in pulsating DC. To get a smooth, steady DC voltage, 'filter' circuits (using capacitors/inductors) are needed.
This medium difficulty physics question is from the chapter semiconductor electronics, covering the topic of rectifier. It appeared in the 2025 exam.
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