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Problem
Problem
A
100
μ
F
100 \mu\text{F}
100
μ
F
capacitor is charged to
100
V
100 \text{ V}
100
V
. After the charging, battery is disconnected. The capacitor is then connected in parallel to another capacitor. The final voltage is
20
V
20 \text{ V}
20
V
. Calculate the capacity of second capacitor.
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