Lab Report 1

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Feb 20, 2024

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Payton Woolace Electrical Circuits 1 Lab Report 1 Dr. Gorguev Page 3

Payton Woolace Electrical Circuits 1 Objective Lab 1 was about using Kirchhoff’s current and voltage laws to find both of them respectively. We did this by creating two circuits and measuring the current and the voltage at various points. We took this data and compared it to the currents and voltages that we calculated using KCL and KVL. This Lab was also our first chance to use some of the equipment we will be using throughout the semester. Process First we started this lab by putting together a circuit that included a voltage source and three resistors. After that we used a multimeter set to ohmmeter mode and measured the resistance, before switching it to DC ammeter mode and measuring current. Finally we switched the multimeter to DC voltmeter mode and measured voltage at several points. From there we then used Kirchhoff’s current law, and the measured voltage and resistance to compute the theoretical current at multiple places. We then repeated each of these steps for a separate circuit. Data Data measured in experiment 1 Nominal Resistance Measured Resistance Measured Voltage Measured Current Theoretical current R1= 1100 Ohms 1120 Ohms 9.8 V 10 Mili Amps 10 Mili Amps R2= 2200 Ohms 2230 Ohms 9.8 V 4.6 Mili Amps 4.6 Mili Amps R3= 3300 Ohms 3350 Ohms 9.8 V 3 Mili Amps 3 Mili Amps ////////////////// Req= 1116 ohms ////////////////// 0.176 Mili Amps 0.176 Mili Amps Data measured in experiment 2 Nominal Resistance Measured Resistance Measured Voltage Measured Current Theoretical Current R1= 1000 Ohms 988 Ohms 1.5 V 1.56 Mili Amps 1.5 Mili Amps R2= 2200 Ohms 2160 Ohms 3.3 V 3.40 Mili Amps 3.34 Mili Amps R3= 3300 Ohms 3260 Ohms 5.1 V 5.21 Mili Amps 5.13 Mili Amps ///////////////// ///////////////// Req= 6400 Ohms ////////////////// ///////////////// 10.01 Mili Amps 9.98 Mili Amps Page 3

Payton Woolace Electrical Circuits 1 Discussion During this experiment I discovered that Kirchhoff’s current and voltage laws are extremely accurate. Majority of the discrepancies found between my data and the theoretical data was caused by the equipment not being one hundred percent accurate. There was very little discrepancies between my data and the theoretical data, which proves that Kirchhoff’s voltage and current laws are correct. Conclusion In conclusion I have learned how to properly use the equipment provided in the labs and correctly put together a circuit. In addition I have learned the real life application of both Kirchhoff’s current and voltage laws. Page 3

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