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58问答库 > 10mH的电感，电流从0A到1A需要多长时间？

10mH的电感，电流从0A到1A需要多长时间？

2025-03-28 07:54:01

推荐回答（1个）

回答（1）：

根据U=L*di/dt，因此dt=L*di/U=10mH*1A/U，请给出电感外加电压U，就可以给出所需要的变化时间。
例如：加10mV电压需要1秒时间，加10V电压就只要1毫秒时间，……不加电压的话电流永远也不会从0变到1A。

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