Electronics information · Difficulty 2
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Which term matches this description: a device that changes AC voltage through electromagnetic induction?
- capacitor
- ground
- resistance
- transformer
Reveal answer and explanation
transformer
transformer is a device that changes ac voltage through electromagnetic induction. A power adapter steps alternating voltage down for equipment.