Mains a.c. power is converrted into d.c. power for_________________?
Correct answer: C. using in electronic equipment
- A. lighting purposes
- B. heaters
- C. using in electronic equipment
- D. none of the above
Explanation
Electronic equipment commonly requires a regulated dc supply, while the mains supply is normally ac, so a rectifier and filtering stages are used for conversion. Ordinary heaters and many lamps can operate directly from ac mains.
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