Question: In the circuit shown in Figure, the capacitor has a capacitance of 2.5 ?F and the resistor a resistance of 0.5 M?. Before the switch

In the circuit shown in Figure, the capacitor has a capacitance of 2.5 ?F and the resistor a resistance of 0.5 M?. Before the switch is closed, the potential drop across the capacitor is 12 V, as shown. Switch S is closed at t = 0.

(a) What is the current in R immediately after S is closed?

(b) At what time t is the voltage across the capacitor 24 V?

12 V +. 36 V

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