Today in class we learned about Nodal analysis and Mesh Analysis. Mesh Analysis are opposite from nodal analysis. In Mesh analysis we assigned loop and find i of that loop rather than finding V or i of each branch like we did in nodal analysis.
We also learned about supernode where we have Voltage source given instead of current.
Following are few examples we did in class for supernode analysis and mesh analysis.
Nodal Analysis LAB:
We analyzed built and test following circuit containing multiple sources by using nodal analysis to predict the circuit behaviour. We compared our measured values with calculated values and also calculated our % error.
Here are few pictures of circuit set up.
We got 4.37 V and 2.41 V measured value of v1 and v2.
Final calcualtion of nodal analysis lab circuit with measured and calculated values.
Our % error was 0% for V1 and 1.04% for V2. you may see the calculations below.
Uncertainity: in this lab our uncertainity was voltage fluctating in multimeter. We did not use exact capacitors. For example 22K resister was 21.72K when we measured it with multimeter.
Post LAB: we learned to do nodal analysis through this lab and found small % error between calculated and measured values due to decimal lost and not using exact values of resisters.
Mesh Analysis Problem that we did in class. below was our solution
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