ET115_W1G00210946_ColbySexton
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Grantham University *
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ET115
Subject
Electrical Engineering
Date
Dec 6, 2023
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13
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Colby Sexton G00210946
1
Colby Sexton
G00210946
Lab # 1
Grantham University
May 15, 2023
Colby Sexton G00210946
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Introduction:
During this lab, a schematic for a series RC circuit containing a 12V power supply, two ground sources, 1kohm
resistor, and a 500 uF capacitor was created using Multisim. While conducting this lab, calculations were performed
and used in a transient analysis for the circuit. While performing the analysis, a table was created and used to
compare calculated values and data received from multisim. The goal of this lab is to familiarize with multisim and
transient analysis.
Equipment/Components:
●
Multisim
●
12V power supply
●
1k ohm resistor
●
500 uF capacitor
●
Two ground sources
●
2 probes-
Voltage and current analysis
Formulas & calculations used:
Colby Sexton G00210946
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●
See attached photo
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Procedure:
1.
In step 1 of this lab, the RC series circuit was constructed with a 5% tolerance for each component
2.
In step 2, a table was created to store calculated data and data received from multisim
3.
In step 3, formulas were used calculate the 5 constant T values for the circuit along with capacitor voltage, and
current. Once all calculations were complete, data was placed in the table that was created in step 2.
4.
In step 4, a transient analysis for Capacitor voltage and current was performed using multisim. During this
analysis, data was recorded from each constant T value.
Circuit:
Colby Sexton G00210946
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Execution/Results (Transient Analysis):
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Analysis:
Before performing this lab, it was expected that all calculations would differ from the analysis performed using
multisim. Upon completion of the Transient analysis, it was found that this wasn’t the case. There were no major
differences in calculations and measurements.
Conclusion:
A schematic for a series RC circuit was created with multisim. This circuit was used in a transient analysis to compare
pre calculated values in regards to:
●
Constant T
●
Capacitor voltage at each time constant
●
Capacitor current at each time constant
Throughout the analysis portion of this lab, there were no major differences between calculations and measurements.
The biggest difference being at the second time constant(see values below):
●
Calculated Vc- 10.38V
●
Measured Vc- 10.4V
●
Calculated Ic- 1.604mA
●
Measured Ic- 1.602mA
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Upon completion of the analysis, it was concluded that calculated values were very close to values from multisim, but
weren’t exact.
Discussion:
Question B:
●
To design a circuit with an applied voltage of 24 volts and a resistor of 1KOhms, that starts at 0V and reaches
24V in 2 seconds, I would first Calculate the capacitance. Working backwards, using 2 seconds as 5T which
would also need to be considered fully charged capacitor (24V). This will make 1T=0.4
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Related Questions
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Recommended textbooks for you
- Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
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ISBN:9781337900348
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Publisher:Cengage Learning