Electronics information · Difficulty 3
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 situation is the best example of voltage?
- A battery provides potential difference across a lamp.
- An ammeter measures charge flow through a wire.
- Opening one lamp disconnects every lamp in the single loop.
- A power adapter steps alternating voltage down for equipment.
Reveal answer and explanation
A battery provides potential difference across a lamp.
voltage is electric potential difference that can drive charge through a circuit. A battery provides potential difference across a lamp.