A capacitor is charged to

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

100\,\mu\text{F}

capacitor is charged to

100\,\text{V}

. After charging, the battery is disconnected. The capacitor is then connected in parallel to another capacitor. The final voltage is

20\,\text{V}

. Calculate the capacitance of the second capacitor.