Practice exam2









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lab4

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Mesh Analysis III In this lab, we will analyze, build, and test a circuit containing multiple sources. Except in special cases, multiple sources preclude the use of analysis techniques based entirely on circuit reduction approaches. In this assignment, we will use mesh analysis to predict the circuit behavior prior to building and testing the circuit. We will then compare the measured circuit response with our expectations based on our analysis. According to the calculation, the I1 is -0.6 A and the V1 is 2.4V. After we compare the experiment value, we get a present difference in less then 1% for both I1 and V1 , so we the prediction we made by using mash analysis was confirmed.
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Mesh Analysis 2       In this lab, we will analyze, build, and test a circuit containing multiple sources. Except in special cases, multiple sources preclude the use of analysis techniques based entirely on circuit reduction approaches. In this assignment, we will use mesh analysis to predict the circuit behavior prior to building and testing the circuit. We will then compare the measured circuit response with our expectations based on our analysis. Based on calculation, we get V1=-2.2v and I1=-321mA Since we chose a wrong resistance for 20k oms, we did not get the value data for the measurement, We cannot get the conclude for the circuit in mash analysis in this case. 
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Purposes: Measuring how much power each resistor absorbs and power supply delivers based on observations. Instruments: Power Supply Breadboard Resistors Digital multimeters (DMM) Procedure & Observed Data: 1.  Record the total current passed through the resistors in the series circuit. Calculate the power dissipated for each resistor. 2.  Record the two currents passed through each resistor in the parallel circuit. Calculate the power dissipated for each resistor. Theoretical Formulas: P = V * I = (I^2)R Series Req = R1 + R2  for two resistors R1 & R2 Parallel Req = (R1*R2) / (R1+R2)    for two resistors R1 & R2 Calculation & Error Analysis: Series:                                          ...
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