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Academics – Electro-Technology : 2024/JUL/02
Question

Q13. (a) A 68 μF capacitor is charged from a 110 V d.c. supply via a 75 kΩ resistor for 5 seconds. This capacitor is then disconnected from the supply and a 47 μF capacitor is charged from the same supply via the same resistor for 7 seconds.

Calculate EACH of the following:

(i) the voltage to which each capacitor has charged. (7)

(ii) the charge stored in each capacitor. (3)

(b) The charged capacitors in Q2(a) are connected in parallel.

Calculate the final voltage across the parallel circuit. (6)

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