開路是指電路中的開關呈關閉狀態或去掉一個負載,使電流不能構成迴路的電路。也稱斷路

在電路學裏面,當電容在一個迴路裏達到穩定狀態(簡單說,就是電容的電壓等於該迴路的電壓源所提供的電壓)時,電容就被open,該迴路就成斷路,此情況稱為開路。

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