[領域] 電學--電容                            (題目相關領域)

[來源] 課本習題                            (課本習題、考古題、參考書...)

[題目]
      An isolated 5.9μF parallel-plate capacitor has 5.80mC of charge.
An external force changes the distance between the electrodes until the
capacitance is 1.40μF.  How much work is done by the external force?


拜託板上強者了   感恩~~

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