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Free cams Secrets
cateh742hhd9
12 hours ago
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我们知道,线圈中储存的能量,一定全部来自于外部电源对电路做的功,因为理想线圈不会耗能(没有电阻)。当电流稳恒后,外部电源不再对线圈做功,电路的电子流都是靠电感飞轮的惯量自发维持着。我们只需想办法计算出,两线圈从零能量状态开始,到达当前电路状态,外部电源一共做了多少功即可。如果你对电感飞轮这个名词感到怪异,可以先看看这个回答: 三島 佐原の蔵元で日本酒や味醂を作っており、蔵元の一部を見学...
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