LAB 5: Multisim
1. Objective
Students will be introduced to National Instrument Multisim software for circuit design and analysis. You will conduct a DC operating point analysis simulation and you will use this to verify Kirchhoff's voltage and current laws, as well as Ohm's law. You will need your computer for this lab. No physical circuit construction is required!
2. Procedure
If you have not already done so, download National Instruments Circuit Design Suite from https://software.udayton.edu. For this class you only need to install Multisim (the other components are optional).
2.1 Basic DC operating point simulation
Use Multisim to simulation the circuit in Fig. 1. Make the bottom node be the 0V reference node by attaching a ground to it. You can use the following YouTube video link to help you through the process if necessary:
https://www.youtube.com/watch?v=2SOyJYQQflU.
1. Have Multisim perform a DC operating point analysis and have it compute the voltage at each node, and the current through each resistor. Copy the Multisim table and paste it into your report as a table.
2. Do a power-check using the Multisim provided parameters for current, and the known voltages for the sources. Include the power check calculations in your report
Figure 1: Circuit for Multisim DC operating point analysis.
2.2 KVL and KCL Verification
3. Enter the circuit from Lab 2 into Multisim. The circuit is shown in Fig. 2. Have Multisim perform a DC operating point analysis and have it compute the voltage at each node, the current through each resistor, and the current through the voltage source. Copy the Multisim table and paste it into your report as a table.
Figure 2: Multisim circuit for KVL and KCL verification.
You are now going to repeat some of the steps from Lab 2, but here using the Multisim DC operating point computed values.
4. Pick any three resistors and verify Ohm's law by showing that the product of the current and the nominal labeled resistance approximately equals the voltage drop across the resistor for each of the three cases. Note: resistor voltage drops must be determined as the difference between the Multisim node voltages provided.
5. Verify Kirchhoff's voltage law (KVL) by showing that the sum of the measured component voltages around each of the four meshes is zero (a mesh is a loop in a circuit containing no "sub" loops).
6. Verify Kirchhoff's current law (KCL) by showing that the sum of all the measured currents leaving each of the 5 essential nodes is zero (an essential node is a node with 3 or more components connected). The essential nodes are labeled 0,1,3,4,5 (note that Node 2 is not an essential node).
7. Verify that the power supplied is equal to the power absorbed in this circuit.
What is the unit of frequency? Who is it named after?
Attachment:- Lab_2.rar