Figure 20-2
-See Figure 20-2. Assume that the capacitor is initially charged to 3 V before the switch is closed. What is the peak current IC that flows after the switch is closed?
A) 0.7 mA
B) infinity
C) 0.3 mA
D) 1.0 mA

Question

Figure 20-2
-See Figure 20-2. Assume that the capacitor is initially charged to 3 V before the switch is closed. What is the peak current IC that flows after the switch is closed?
A) 0.7 mA 
B) infinity 
C) 0.3 mA 
D) 1.0 mA

Quizplus · Accepted Answer

The capacitor is initially charged to 3 V, so the initial current through the resistor is 3 V / 10 kΩ = 0.3 mA. The current will then decay exponentially to zero. The peak current is therefore 0.3 mA.

Figure 20-2 -See Figure 20-2. Assume That the Capacitor Is Initially Charged