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怎么让灯泡亮起来
更新时间: 2020-09-21 00:00:00  

让灯泡亮起来的方法:

1、提高灯泡的实际功率:即同一种灯泡,在电阻一定的情况下,可增加灯泡两端的电压以及通过灯泡的电流;不同灯泡,选择灯丝电阻较小的;

2、提高灯泡的发光效率:如实际功率相等的节能灯比通常的白炽灯要更亮。

关键词: 怎么 灯泡 起来

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