[id10t]

You may want to look at the A+ Certification info on power supplies, etc.

CompTIA A+ Cert Guide: Power Supplies and System Cooling | Foundation Topics | Pearson IT Certification

https://www.lingq.com/lesson/a-chapter-8-power-supplies-2-683030/

https://www.certblaster.com/power-supplies-a-plus-901-sub-objective-1-8/