A 5 μF capacitor is charged to 10 V and then discharged through a resistance of 2 MΩ. Determine (a) the initial current, (b) the time taken for the voltage across the capacitor to drop to 6.3 V. A 0.2...

A 5 μF capacitor is charged to 10 V and then discharged through a resistance of 2 MΩ. Determine (a) the initial current, (b) the time taken for the voltage across the capacitor to drop to 6.3 V.

A 0.2 μF capacitor is charged to 5 V and then discharged through a resistance of 40 kΩ. Determine (a) the voltage across the capacitor after 15 ms, (b) the voltage across the resistor after 15 ms.