It is assumed that you remember (or can look up) the software procedures you used last week in Lab 3, so these instructions will focus on the new features we haven t used before. Lab Exercises The purpose of this lab is to analyze an RC network using Multisim. Plot the discharge curve using the capacitor discharge formula given in class. Assume the capacitor is fully charged, and the switch moves to position 1 at t = 0sec. Plot the charge curve using the capacitor charge formula given in class. Answer the following: (a) What is the time constant for the circuit? (b) What will the capacitor voltage be at t = 150ns? (c) What will the resistor voltage be at t = 150ns? (d) What will the resistor current be at t = 150ns? (e) How much time must pass for the capacitor voltage to reach 1V? 3. Plot the charge curve for the capacitor using the 2/3 estimation method given in class. At t = 0s, the switch moves to position 1 and the capacitor begins to discharge. For step 4, assume the switch has been in position 2 for a long time. At t = 0s, the switch moves to position 2 and the capacitor begins to charge. 1 Lab 4 Multisim Evaluation of an RC Network Prelab Exercises All graphs must be fully labeled and drawn neatly! No answers are complete without the units! as always, show your work! 2 R 1 = 10kΩ 5V + V s t = 0s 1 C 1 = 5pF Figure 1: Cicuit for prelab exercises For steps 1, 2, and 3, assume the switch has been in position 1 for a long time.
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