An isolated 5.0 mF parallel-plate capacitor has 4.0 mC of
Chapter 26, Problem 26.97(choose chapter or problem)
An isolated 5.0 mF parallel-plate capacitor has 4.0 mC of charge. An external force changes the distance between the electrodes until the capacitance is 2.0 mF. How much work is done by the external force?
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