Lab Experiment No. 4: Introduction to the Principle of Superposition
Lab Experiment No. 4: Introduction to the Principle of Superposition Lab Experiment No. 4: Introduction to the Principle of Superposition
EE 442 Laboratory Experiment 4Introduction to the Principle of SuperpositionDC Supply+20 V tapAmmeterR1A14.7k12VdcV1CommonR210k12VdcV2-20 V tapAmmeterA2R333kFigure 5 Laboratory version of the circuit in Figure 25. Note that the circuit in Figure 5 is equivalent to replacing the lowervoltage source in Figure 4 with zero Ohms (short circuit). Do notconnect the -20 V tap directly to the common tap whensuppressing the lower supply.6. Energize the circuit in Figure 5 and the measure and record thefollowing data:a. Ammeter readings A 1 and A 2 (compare with prelimcalculations)A 1 = __________A 2 = __________b. Voltage across the 10 kΩ resistorV 10 kΩ = __________7. Turn off the DC supply and rearrange the circuit according toFigure 6.6
EE 442 Laboratory Experiment 4Introduction to the Principle of SuperpositionDC Supply+20 V tapAmmeterR1A14.7k12VdcV1CommonR210k12VdcV2-20 V tapAmmeterA2R333kFigure 6 Laboratory version of the circuit in Figure 38. What does the circuit arrangement of Figure 6 accomplish in termsof the original circuit?9. Energize the circuit given in Figure 6 and then measure and recordthe following data:a. Ammeter readings A 1 and A 2 (compare with prelimcalculations)A 1 = __________A 2 = __________b. Voltage across the 10 kΩ resistorV 10 kΩ = __________10. Turn the DC supply off, but before dismantling the circuit, applyKCL and the principle of superposition by making the followingcalculations:a. Add the component values of i 1 measured in step 6 to thevalue of i 1 measured in step 9. (Be careful to account for thesigns!) Compare the resultant i1 to that of step 2.7
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EE 442 <strong>Lab</strong>ora<strong>to</strong>ry <strong>Experiment</strong> 4<strong>Introduction</strong> <strong>to</strong> <strong>the</strong> <strong>Principle</strong> <strong>of</strong> <strong>Superposition</strong>DC Supply+20 V tapAmmeterR1A14.7k12VdcV1CommonR210k12VdcV2-20 V tapAmmeterA2R333kFigure 5 <strong>Lab</strong>ora<strong>to</strong>ry version <strong>of</strong> <strong>the</strong> circuit in Figure 25. <strong>No</strong>te that <strong>the</strong> circuit in Figure 5 is equivalent <strong>to</strong> replacing <strong>the</strong> lowervoltage source in Figure 4 with zero Ohms (short circuit). Do notconnect <strong>the</strong> -20 V tap directly <strong>to</strong> <strong>the</strong> common tap whensuppressing <strong>the</strong> lower supply.6. Energize <strong>the</strong> circuit in Figure 5 and <strong>the</strong> measure and record <strong>the</strong>following data:a. Ammeter readings A 1 and A 2 (compare with prelimcalculations)A 1 = __________A 2 = __________b. Voltage across <strong>the</strong> 10 kΩ resis<strong>to</strong>rV 10 kΩ = __________7. Turn <strong>of</strong>f <strong>the</strong> DC supply and rearrange <strong>the</strong> circuit according <strong>to</strong>Figure 6.6
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