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An unknown capacitor C is connected in series with a 3.0-μF capacitor; this pair is placed in parallel with a 1.0-μF capacitor, and the entire combination is put in series with a 2.0-μF capacitor, (a) Make a circuit diagram of this network, (b) When a potential difference of 100 V is applied across the open ends of the network, the total energy stored in all the capacitors is 5.8 mJ. Find C.
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