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Q8. A capacitor of 100 μF is charged from a 120 V d.c supply via a 100 kΩ resistor for 4 second,

(a) Calculate EACH of the following:

(i) The time constant of the circuit;

(ii) The voltage to which the capacitor has charged after 4 seconds.

(b) A second capacitor of 80 μF is now charged for 4 seconds from the same supply via the same 100 kΩ resistor. Both charged capacitors are now connected in parallel.

Calculate EACH of the following:

(i) The final steady state voltage across the pair of capacitors;

(ii) The total energy stored in the two capacitors.