2. A series RC circuit consists of a 25 V DC power supply, a 100 k ohms resistor, and a 0.045 ?F capacitor. (3 points)
a. Calculate the time constant for the circuit.
b. Calculate the current and voltage drop across the resistor and the capacitor during charging at times of 0, 1, 2, 3, 4, 5, and 10 ms. Time (ms) VR (Volts) iR (Amps) VC (Volts) iC (Amps) 0 1 2 3 4 5 10
Time (ms) VR (Volts) iR (Amps) VC (Volts) iC (Amps)
0
1
2
3
4
5
10
c. At what time is the capacitor 99.5% charged