Remember AC
Full name: Alternating Current
Memory aid: Alternating means back and forth.
An adapter converts mains AC to the DC a device requires.
Study area: Power & safe servicing · Batch 1
Relevant study for: CompTIA A+ Core 1 220-1201 · CompTIA Server+
Practice with exam flashcards →Hardware & Components / Knowledge library
AC — Alternating Current
Describes current that reverses direction periodically.
Why learn AC — Alternating Current?
Describes current that reverses direction periodically.
Where it came from
An adapter converts mains AC to the DC a device requires.
- Memory aid (a learning cue, not the expansion): Alternating means back and forth.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand AC: Alternating Current.
- Recall this memory aid: Alternating means back and forth.
- Explain the practical use: Describes current that reverses direction periodically.
- Explain this distinction: An adapter converts mains AC to the DC a device requires.
- Identify AC in a device specification, architecture diagram, or system inventory.
Documentation and sources
- Intel ATX power supply design guide (www.intel.com)