10 Dec A brief description of the experiment. The abstract should not exceed four or five sentences. Introduction In your own words, explain the reason for performing the experiment and give a conc
Abstract
A brief description of the experiment. The abstract should not exceed four or five sentences.
Introduction
In your own words, explain the reason for performing the experiment and give a concise summary of the theory involved, including any mathematical detail relevant to later discussion in the report.
Conclusions
This section should reflect your understanding of the experiment. Important points to include are a brief discussion of your final results, an interpretation of the actual experimental results as they apply to the objectives of the experiment set out in the introduction should be given
College of Technology 2019
Electric Circuits I Project
Room 4: Troubleshooting
I. Objectives:
1. Measure current and voltage in the simulated environment
2. Demonstrate how to connect a multimeter to measure voltage in the simulated environment
3. Demonstrate how to connect a multimeter to measure current in the simulated environment
4. Apply Ohm’s Law to determine Current
5. Apply Kirchhoff’s Current Law to parallel circuit currents
6. Apply troubleshooting techniques to determine open circuit and short circuit faults in the circuit.
7. Calculate Power from measured voltage and current
II. Procedures:
Part 1: Troubleshooting in Multisim
1. Open EET110_Unit_5_Lab_Troubleshooting file in Multisim and verify that S1, S2, S3, S4, S5, S6, and S7 are all open.
2. Run the simulation and verify the total source voltage is 120 V and the total source current is 0 A.
Figure 1. Initial Circuit Set-Up
3. Close S1 to connect the microwave branch.
4. Calculate the expected value of the branch current.
5. Calculate the expected power consumed by the microwave.
6. Record the circuit voltage and current in the microwave branch.
Vs = 120 V
Imw = 124.984 A
7. How does the recorded current compare to the expected current?
The recorded current is much higher than the calculated current.
8. Based on the recorded current and the circuit voltage, what is the resistance of the microwave?
9. If the measured current differs from the expected current, what is a possible cause?
Possible damage to the resistor allows more current to pass through.
10. How does the calculated resistance verify your conclusion?
The calculation reveals that the resistor is in the process of burning out or leaking, which is it allows more current to flow through.
11. Click S1 to disconnect the microwave from the circuit.
12. Click S2 to connect the dishwasher branch.
Figure 3. Dishwasher Connected
13. Calculate the expected value of the branch current.
14. Calculate the expected power consumed by the dishwasher.
15. Record the circuit voltage and current in the dishwasher branch.
Vs = 120 V
Idw = 1.421 nA
16. How does the recorded current compare to the expected current?
The recorded current is significantly lower than the expected current.
17. Based on the recorded current and the circuit voltage, what is the resistance of the dishwasher?
18. If the measured current differs from the expected current, what is a possible cause?
Possible open in the dishwasher circuit
19. How does the calculated resistance verify your conclusion?
The calculation revealed that the dishwasher has an open circuit due to unusually high resistance, which results in low current.
20. Click S2 to disconnect the dishwasher from the circuit.
21. Click S3 to connect the light to the circuit.
Figure 4. Light Connected
22. Calculate the expected value of the branch current.
23. Calculate the expected power consumed by the light.
24. Record the circuit voltage and current in light branch.
25. How does the recorded current compare to the expected current?
Recorded and expected current is the same
26. Based on the recorded current and the circuit voltage, what is the resistance of the light?
27. If the measured current differs from the expected current, what is a possible cause?
The circuit is working as it should
28. How does the calculated resistance verify your conclusion?
Ohms law calculation confirms that the circuit is working correctly
29. Click S3 to disconnect the light from the circuit.
30. Click S4 to connect the stove branch.
31. Calculate the expected value of the branch current.
32. Calculate the expected power consumed by the stove.
33. Record the circuit voltage and current in stove branch.
Vs = 120 V
Istove = 122.652 A
34. How does the recorded current compare to the expected current?
The recorded current is much higher than the calculated current.
35. Based on the recorded current and the circuit voltage, what is the resistance of the stove?
36. If the measured current differs from the expected current, what is a possible cause?
Possible damage to the resistor allows more current to pass through
37. How does the calculated resistance verify your conclusion?
The calculation reveals that the resistor is in the process of burning out or leaking, which is it allows more current to flow through
38. Click S4 to disconnect the stove from the circuit.
39. Click S5 to connect the coffee pot to the circuit.
Figure 6. Coffee Pot Connected
40. Calculate the expected value of the branch current.
41. Calculate the expected power consumed by the coffee pot.
42. Record the circuit voltage and current in the coffee pot branch.
Vs = 120 V
Icp = 1.421 nA
43. How does the recorded current compare to the expected current?
The recorded current is significantly lower than the expected current
44. Based on the recorded current and the circuit voltage, what is the resistance of the coffee pot?
45. If the measured current differs from the expected current, what is a possible cause?
Possible open in the stove circuit
46. How does the calculated resistance verify your conclusion?
The calculation revealed that the stove circuit has an open circuit due to unusually high resistance, which results in low current
47. Click S5 to disconnect the coffee pot from the circuit.
48. Click S6 to connect the pod-style coffee maker to the circuit.
Figure 7. Pod-Style Coffee Maker Connected
49. Calculate the expected value of the branch current.
50. Calculate the expected power consumed by the pod-style coffee maker.
51. Record the circuit voltage and current in pod-style coffee maker branch.
52. How does the recorded current compare to the expected current?
Recorded and expected current is the same
53. Based on the recorded current and the circuit voltage, what is the resistance of the pod-style coffee maker?
54. If the measured current differs from the expected current, what is a possible cause?
The circuit is working as it should
55. How does the calculated resistance verify your conclusion?
Ohms law calculation confirms that the circuit is working correctly
56. Click S6 to disconnect the pod-style coffee maker from the circuit.
57. Click S7 to connect the blender to the circuit.
Figure 8. Blender Connected
58. Calculate the expected value of the branch current.
59. Calculate the expected power consumed by the blender.
60. Record the circuit voltage and current in microwave branch.
Vs = 120 V
Iblender = 127.984 A
61. How does the recorded current compare to the expected current?
The recorded current is much higher than the calculated current.
62. Based on the recorded current and the circuit voltage, what is the resistance of the microwave?
63. If the measured current differs from the expected current, what is a possible cause?
Possible damage to the resistor allows more current to pass through
64. How does the calculated resistance verify your conclusion?
The calculation reveals that the resistor is in the process of burning out or leaking, which is it allows more current to flow through
65. Click S7 to disconnect the blender from the circuit.
Measured Resistance, Current, and Voltage
|
Current |
Calculated Power |
Resistance |
Fault? |
|||
|
Calculated |
Measured |
Given |
Calculated |
|||
|
5 A |
124.984 A |
600 W |
24 Ω |
0.960 Ω |
short |
|
|
Dishwasher |
6.67 A |
1.421 nA |
800 W |
18 Ω |
844.48 GΩ |
open |
|
Light |
500 mA |
500 mA |
60 W |
240 Ω |
240 Ω |
none |
|
Stove |
2.67 A |
122.652 A |
320 W |
45 Ω |
0.978 Ω |
short |
|
Coffee Pot |
4.8 A |
1.421 nA |
576 W |
25 Ω |
844.48 GΩ |
open |
|
Pod-style CP |
12 A |
12 A |
1440 W |
10 Ω |
10 Ω |
none |
|
Blender |
8 A |
127.984 A |
960 W |
15 Ω |
0.94 Ω |
short |
Table 1. Tabulated Results
Part 2: Troubleshooting in House Simulation
1. Launch the Simulated House and navigate to the Kitchen.
2. Click on the Activities button on the menu.
3. Confirm that all switches are off and there is no power to any device in the room (i.e., all devices are off).
4. Configure the multimeter to read voltage and verify the circuit voltage.
5. Configure the multimeter to read current and verify the circuit current.
6. Leave the multimeter connected to read current as you click on S1 to connect the microwave.
7. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred? The microwave malfunction with a explosion then turned off.
8. Record the initial circuit current.
Imw = 120 A
9. Leave the multimeter connected to read current as you click on S2 to connect the dishwasher.
10. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred? Dishwasher worked for a brief moment then turned off and water spilled onto the floor.
11. Record the initial circuit current.
Idw = 0 A
12. Leave the multimeter connected to read current as you click on S3 to connect the light.
13. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred?
The lights worked as expected
14. Record the initial circuit current.
Ilight = 500 mA
15. Leave the multimeter connected to read current as you click on S4 to connect the stove.
16. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred? Stove turned on briefly then started overheating and burnt out.
17. Record the initial circuit current.
Istove = 120 A
18. Leave the multimeter connected to read current as you click on S5 to connect the coffee pot.
19. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred? Briefly turned while making weird noises then overheated with explosion then turned off.
20. Record the initial circuit current.
Icp = 0 A
21. Leave the multimeter connected to read current as you click on S6 to connect the pod-style-coffee maker.
22. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred?
The pod-style behave as expected.
23. Record the initial circuit current.
24. Leave the multimeter connected to read current as you click on S7 to connect the blender.
25. Observe the circuit and record your findings. Did the appliance behave as expected? If not, what occurred? The blender worked briefly then exploded to pieces.
26. Record the initial circuit current.
Iblender = 120 A
Measured Resistance, Current, and Voltage
|
Current |
Fault? |
||
|
Calculated |
Measured |
||
|
Microwave |
5 A |
120 A |
Shorted |
|
Dishwasher |
6.67 A |
0 A |
Open |
|
Light |
500 mA |
500 mA |
None |
|
Stove |
2.67 A |
120 A |
Shorted |
|
Coffee Pot |
4.8 A |
0 A |
Open |
|
Pod-style CP |
12 A |
12 A |
None |
|
Blender |
8 A |
120 A |
Shorted |
Table 2. Tabulated Results for Part 2
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,
EET110
Electric Circuits I
Instructor: ———–
Lab 5
Troubleshooting
Student Name(s): Click or tap here to enter text.
Click or tap here to enter text.
Honor Pledge:
I pledge to support the Honor System of ECPI. I will refrain from any form of academic dishonesty or deception, such as cheating or plagiarism. I am aware that as a member of the academic community, it is my responsibility to turn in all suspected violators of the honor code. I understand that any failure on my part to support the Honor System will be turned over to a Judicial Review Board for determination. I will report to the Judicial Review Board hearing if summoned.
Click or tap here to enter text.
Student Name Date: Click or tap to enter a date.
Adding your name here constitutes your agreement to the Honor Pledge as stated.
Contents Abstract 3 (Students need to write this). 3 Introduction 3 (Students need to write this). 3 Procedures 3 Part 1: Troubleshooting in Multisim 3 Part 2: Series-Parallel Circuit House Simulation 4 Data Presentation & Analysis 4 Part 1: Series-Parallel Circuit in Multisim 4 Part 2: Series-Parallel Circuit House Simulation 4 Required Screenshots 5 Conclusion 6 References 6
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Lab Report Instructions: (This instruction box is to be deleted before submission of Lab report) Before starting on your lab report, please follow the following steps: 1) Watch the “Lab Video Resources” in your course shell. 2) Follow the instructions listed in the file “EET110 Unit-1 Lab – Instructions” 3) Complete this lab report . Upon completion, you will submit only this lab report to your instructor. |
Abstract
|
(This instruction box is to be deleted before submission of Lab report) What is an Abstract? This should include a brief description of all parts of the lab. The abstract should be complete in itself. It should summarize the entire lab; what you did, why you did it, the results and your conclusion. Think of it as a summary to include all work done. It has to be succinct but yet detailed enough for a person to know what this report deals with in its entirety. 
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