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Q5. A capacitor of 200 μF is charged from a 120 volt d.c. supply via a 100 kΩ resistor.

Determine EACH of the following:

(a) The time taken for the p.d. across the capacitor to reach 80 volts;

(b) The charge on the capacitor at this time.

If the capacitor is now disconnected from the supply and joined to another, Uncharged, capacitor of 100 μF determine EACH of the following:

(c) The final p.d. across the pair of capacitors;

(d) The energy stored by the pair of capacitors.