Lab03.doc - ECEN 301 Sec Student Electrical Engineering for...

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ECEN 301 Student ____________________________ Sec ____ Electrical Engineering for Engineers Brigham Young University Lab 3: Kirchhoff’s Laws and Equivalent Circuits TA Pass-off (4 pts) Objectives Demonstrate the ability to solve for voltages and currents in circuits with multiple branches using Mesh-current and Node-voltage analysis methods. Learn how to practically determine circuit equivalents using Kirchhoff’s laws. Pre-lab Work Please do the pre-lab work before you come to lab . You will then be able to begin the lab work immediately and get meaningful help from the instructors. 1. Review the Mesh-Current and Node-Voltage methods for solving circuits. 2. You could use Thèvenin equivalents, series and parallel equivalent resistances, and voltage and current dividers to solve the whole circuit, but we will use the Mesh and Node methods in this lab. For the circuit shown below calculate the Mesh Current in each loop. For this lab, treat the LED as a constant voltage source equal to your Lab2 value (or ~2V), where the positive terminal is connected to node a . 301_Lab03 21 Jul 2005 dad Page 1 of 8 + R 1 = 82 Ω R 2 = 330 Ω LED 150 Ω = R 3 33 Ω = R 4 R 5 = 56 Ω R 6 = 68 Ω 120 Ω = R 7 10 V i 1 i 2 i 3 i 4 i 5 i 6 R 8 = 100 Ω a b c d
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Figure 1: Lab 3 Circuit 301_Lab03 21 Jul 2005 dad Page 2 of 8
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Show your Mesh Current Analysis equations below and then use your calculator to solve.
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  • Fall '17
  • Dr.Nordin

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