Circuit Analysis – Week #5 Lab

Sinusoidal Steady State Analysis

This week’s lab is based on the sinusoidal steady state analysis using capacitive and inductive circuits in Multisim.

1. In the frequency domain circuit below, determine the currents I1, I2 and I3. Make sure you show your work.

2. Switch the places of capacitor and inductor and repeat step 2 to determine the currents. Show your work.

3. Record the values in the table below for the magnitude and phase angle of each current:

	Current I1		Current I2		Current I3
	Calculated	Measured	Calculated	Measured	Calculated	Measured
Step 2
Step 3 (Capacitor and Inductor Switched)

4. Using a frequency of 100 Hz, determine the value of the capacitor and inductor to get the values of XC and XL in the schematic; make sure you show your work.

Construct the circuit above in Multisim using 100 Vrms with 100 Hz for the AC POWER source voltage (make sure you double click on the AC POWER source and change the AC ANALYSIS MAGNITUDE field to 100 also).

a. Run the simulation to measure the currents I1, I2 and I3 using a DVM. (Use 5% tolerances for the resistor). Take screenshots of your measurements.

b. Perform Single Frequency AC Analysis for the component currents and display the magnitude and phase angle for each component.

c. Calculate the average power, reactive power and apparent power supplied by the voltage source.

d. Switch the capacitor and inductor and repeat the above measurements and power calculations.

e. Take the screen capture of all the measurements and the Single Frequency AC analysis.

5. Answer the following questions:

a. Are the measured values the same as calculated values? If not, explain why they are different?

b. Compare the measurements of currents from step 2 and 3 and explain the differences?

c. What do you understand from the Single Frequency AC analysis of this circuit?

6. Create a new word document called “Lab5_StudentID.docx” with your GID substituted into the file name.

7. Save the analysis from step 2 & 3 and simulation results from step 5 along with the table and screen captures of all the measurements. Make sure to answer the questions in step 5.

8. Upload file “Lab5_StudentID”.

Rules for lab submissions:

1. The lab document must be a Word document. PDF files are NOT accepted.

2. All screenshots must be included.

3. All screenshots must include the Multisim time stamp.

4. Any and all Multisim files must be submitted.

5. Any equations used must be typed in Word. Copy and paste of equations from outside sources is prohibited.

6. No graphics are allowed in the Word document other than screenshots of circuits from Multisim with the time stamp.

7. The lab template should be used. Specifically, it is brought to your attention that a summary MUST be provided explaining the results of the labs, the relationship of the results to expected results, and any challenges encountered.

8. All resistors in must be have a tolerance of at least 5% set. Thus, your measured values should NOT be exactly equal to your calculated values.

Any violation of the submission rules above will result in a grade of 1.