A 30-?F capacitor is charged to an unknown potential V0 and then connected across an initially uncharged 10-?F capacitor. If the final potential difference across the 10-?F capacitor is 20 V, determine V0.
A. 13 V
B. 27 V
C. 20 V
D. 29 V
E. 60 V
Answer: B
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