3. Charging a capacitor through a resistor. The capacitor initially starts with no charge. Refer to the circuit diagram on the right. (a). Write down the mathematical expression for the current flowing through the circuit as a function of time. (b). Calculate the current flowing in the circuit at the end of 2 time constants. (c). Calculate the voltage across the resistor at the end of 2 time constants. (d). Explain what happens to the current in the circuit after the time interval t = 5 time constants. (e). Carefully draw a graph of the time dependent behavior of the current flowing through the circuit, and label everything! R = 1800 Ω WM Vps = 10 volts C = 225 µF

3. Charging a capacitor through a resistor. The capacitor initially starts with no charge. Refer to the circuit diagram on the right. (a). Write down the mathematical expression for the current flowing through the circuit as a function of time. (b). Calculate the current flowing in the circuit at the end of 2 time constants. (c). Calculate the voltage across the resistor at the end of 2 time constants. (d). Explain what happens to the current in the circuit after the time interval t = 5 time constants. (e). Carefully draw a graph of the time dependent behavior of the current flowing through the circuit, and label everything! R = 1800 Ω WM Vps = 10 volts C = 225 µF