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You need a capacitance of 55 μF , but you don't happen to have a 55...

You need a capacitance of 55 μF , but you don't happen to have a 55 μF capacitor. You do have a 85 μF capacitor.

1. What additional capacitor do you need to produce a total capacitance of 55 μF? Express your answer using two significant figures.

2. Should you join the two capacitors in parallel or in series?

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