ammeter

IPA/ˈæmiːtə(r)/
KK[ˈæmˌitɚ]IPA/ˈæmiːtər/

ammeter — 名詞

  • ammetersingular
  • ammetersplural

1. a piece of equipment that shows how much electrical current is passing through a

1.名詞B2
釋義

安培計

測量電流強度的儀器

a piece of equipment that shows how much electrical current is passing through a wire or circuit, with the result given in amps or amperes.

例句

Bilal watched the needle on the ammeter as he slowly turned up the power dial.

Bilal 一邊慢慢調高功率旋鈕，一邊看著安培計上的指針。

ammeter + needle: analog display reading

The physics teacher connected the ammeter in series so current would flow through it.

物理老師將安培計串聯在電路中，讓電流通過它。

connected in series — correct wiring for an ammeter

同義詞
  • current meter

    less common; can also refer to water-flow meters in non-electrical contexts

反義詞
  • voltmeter

    measures voltage (electric potential difference) instead of current

常見錯誤

❌I measured the voltage with an ammeter.
✅I measured the current with an ammeter.
💡An ammeter measures current (flow of electrons), not voltage (electric pressure). Use a voltmeter for voltage.
❌She connected the ammeter across the battery terminals.
✅She connected the ammeter in series with the battery.
💡An ammeter must be wired in series (in the path of the current), not in parallel across terminals, or it may be damaged.