在交变磁场中，图一开关断开，电流可以从a流动到b或者从b到a吗？开关两端可以看做极板，看成电容器吗？ 知乎 Sketch Coloring Page

在交变磁场中，图一开关断开，电流可以从a流动到b或者从b到a吗？开关两端可以看做极板，看成电容器吗？ 知乎 Template

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tomski在交变磁场中，图一开关断开，电流可以从a流动到b或者从b到a吗？开关两端可以看做极板，看成电容器吗？ 知乎 coloring

在交变磁场中，图一开关断开，电流可以从A流动到B或者从B到A吗？开关两端可以看做极板，看成电容器吗？ 知乎 sketch template

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