交流電

Also known as AC, AC current

随时间周期性变化且在一个周期内的平均值为零的电流

AI overview

Alternating current is electric current that regularly switches direction back and forth, rather than flowing in one constant direction. This type of current is widely used because it can be efficiently transmitted over long distances and easily converted to different voltage levels, making it practical for powering homes and businesses.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Image: Effektivwert-Sinus.svg

Show 4 more facts

opposite of: direct current
maintained by WikiProject: WikiProject Mathematics
Commons category: Alternating current
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4

Sources (4)

via Wikidata · CC0

Article · 中文

交流電流（alternating current，縮寫：AC）是指电流强度和电流方向都發生週期性變化的電流，在一個週期內的平均值為零。不同於直流電，後者的方向是不會隨著時間發生改變的，並且直流電沒有周期性變化。通常波形為正弦曲線。交流電可以有效傳輸電力。但實際上還有應用其他的波形，例如三角形波、正方形波。生活中使用的市電就是具有正弦波形的交流電。

Abstract from DBpedia / Wikipedia · CC BY-SA