ASVAB (Armed Services Vocational Aptitude Battery)Electronics Information (EI)Medium
What is the primary function of a rectifier circuit?
- ATo filter out unwanted frequencies.
- BTo convert AC voltage to DC voltage.
- CTo amplify an AC signal.
- DTo increase the frequency of an AC signal.
Show answer & explanationAnswer & explanation
Correct answer: B. To convert AC voltage to DC voltage.
A rectifier circuit, typically using diodes, converts alternating current (AC) into direct current (DC) by allowing current to flow in only one direction.
Why the other options are wrong
- A. Filters are used for frequency selection, not rectification.
- C. Amplifiers increase signal strength, not rectify.
- D. Frequency multipliers change frequency, not rectifiers.
Rectifier
An electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction.
- Most commonly uses diodes (half-wave, full-wave).
- Often followed by a filter (capacitor) to smooth the DC output.
- Essential component in power supplies to convert mains AC to usable DC for electronics.
Memory trick: Rectifiers Make AC Go DC.