A 25 microf capacitor charged to 42 kv and a second 50, Ask an Expert

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A 25 µF capacitor charged to 4.2 kV and a second 50 µF capacitor charged to 6.3 kV are connected to each other, with the positive plate of each connected to the negative plate of the o ther.

What is the charge on the first capacitor after the two are so connected?

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