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电容器的充电与放电如何判断

更新时间: 2020-10-26 00:00:00     

1、电容的电压是电流的积分,因此只要检查电容电压,如果电压上升,表示正在充电,如果电压在下降,表示正在放电。

2、电压增加是在充电,降低是在放电,充电时电荷量增加,放电时电荷量减少。

3、电容器充满电后,你把一只小灯泡接在两极板,电容器开始对灯泡放电,并可能点亮灯泡,随着电容器不断放电,极板电荷越来越少,极板电压越来越低,灯泡也越来越暗。

关键词: 电容器 充电 放电 如何 判断

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