Lab Analysis Of A Circuit Lab

1403 Words 6 Pages
Foreword

On September 22, 2016, you said you needed information on the Circuit Lab I had recently completed in order to present information to high school students. You need this information by October 4, 2016, in order to talk to students about circuits and increase their interest in technical subjects and the engineering profession on Shadow-an-Engineer-Day on October 17, 2016. For the Circuit Lab, I was asked to use concepts of Ohm’s Law and read/analyze circuit diagrams with common components, then test them on a breadboard. The purpose of this lab report is to provide information on the setup and procedures for circuit 1 and the calculations/analyses for all five circuits.

Summary

For the Circuit Lab, I was asked to perform various
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The circuit has 2 resistors, one with 100 Ω of resistance and the other with 1KΩ, and a voltage source of 3 volts in series in a closed circuit.
Tables 2 through 5 show the data for circuits 2-5. Circuit 2 includes a voltage source of 3 volts and two resistors with resistances of 100Ω and 1 KΩ. This time, the resistors are in parallel in a closed circuit. For circuit 3, there is a combination of resistors in parallel and in series. In circuit 4, the circuit contains 2 resistors and an LED in a series closed circuit. Lastly in circuit 5, there is a combination of resistors and an LED in parallel and in series. (Refer to the Appendix on page 9)
Calculations

One of the first calculations I found was power. Power, measured in watts (W), is defined as the rate of absorbing or disbursing energy. Power is found by the equation P=IV [Power= CurrentsResistance]. The next calculation I found was the KVL sum. The KVL sum is Kirchhoff’s voltage law that says all the voltage around a closed path circuit equals zero. I also found the power conservation sum. Power (energy) conservation means that the sum of all the power absorbed by the elements in the circuit equals zero. Tables 6-10 show the results from my
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For the circuits, I noticed the resistors demonstrate Ohm’s Law and the currents/voltages demonstrate Kirchhoff’s law. I also found that the LED’s brightness changes with the amount of current that flows through it. The more current that flows through, the brighter the LED becomes. I also noticed that in most of the circuits, the measured values were different than the nominal values because there was resistance found in the wires. This results a loss of energy from the

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