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lab 1 - 1 EE 300 Experiment#1 Ohm's Law and Kirchoff's Laws...

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EE 300 Experiment #1 Ohm’s Law and Kirchoff’s Laws Scott Finnesand Lab # 1 Instructor: Barun Ranjikar 1
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Introduction: In this lab, two main principles will be applied, Ohm’s law and Kirchhoff’s laws. Ohm’s law states that the voltage drop across a resistor is equal to the resistance times the current. This is a very useful concept in designing circuits. The other part of the lab deals with Kirchhoff’s current and voltage laws. Kirchhoff’s current law states that the sum of the currents leaving a node is equal to the sum of the currents entering a node. Kirchhoff’s voltage law is also used in this lab. Kirchhoff’s voltage law states that the sum of all voltages around a closed loop must equal zero. Both of these relationships will be used to compute currents and voltages inside a circuit. Analysis: The first part of the lab Ohm’s Law will be tested and proved. In the first circuit, current I1 was measured. I1 measured to be 3.21mA. The theoretical value for I1 was 3.2mA. These values are very close in value, the percent difference was less than one percent. For circuit (ii) the current the measured value for I2 was 1.47mA and the theoretical value was 1.45mA. These values are very similar in value. The percent difference is 1.37%. The theoretical voltages across resistor one, V1 was calculated to be 6.81V and the calculated value for the voltage drop across resistor 2, V2, was 8.12V.
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