EECE211

EECE 211L Lab #2

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EECE 211L Lab #2:

Equivalency of Node Voltage and Mesh Current Methods

Introduction:

During this experiment, you will verify that the two generalized techniques covered in class for

solving linear circuits are equivalent. The Node Voltage Method uses KCL to produce equations

for each circuit node with an unknown voltage, and the Mesh Current Method uses KVL to

produce equations for each circuit mesh.

Pre-lab Assignment: Theoretical Calculations:

(Do not simplify or change the configuration of the circuit)

1. Use the Node Voltage Method on the circuit in Figure 1 find the voltage VX.

2. Use the Mesh Current Method on the circuit in Figure 1 to find the voltage VX. (Hint: Both

methods should produce two equations in two unknowns.)

3. Verify that you get the same result from both methods (ignoring any rounding errors).

Include all of your hand calculations that you performed for both methods.

EECE 211L Lab #2

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Lab Experiment:

1. Using the multimeter, measure and record the actual resistance values of the resistors.

2. Set the DC power supply to provide 15V (verify with your multimeter), and build the circuit in

Figure 1 on your breadboard.

3. Use the multimeter to measure the voltage VX on your physical circuit. Recalculate VX using

both methods and your actual measured resistance values. Compare your measured and

calculated values for VX.

4. Include all actual measured values and calculations in your lab report, and compare

theoretical and actual results.

Signoff: Measure correct value of VX on your physical circuit (30 points).