eet 129 lab 1 report

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School

Centennial College *

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Course

129

Subject

Electrical Engineering

Date

Feb 20, 2024

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docx

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8

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Centennial College ELECTRICAL ENGINEERING TECHNICIAN Course: EET-129 Names (Please Print )Bilive khatri Student Numbers: 301362967 Date: 2024/01/20 LAB # 1 MULTISIM PRACTICE Objectives At the end of this lab, the student will be able to: 1- Create basic circuits in Multisim. 2- Incorporate Virtual Instruments to the design. 3- Compare calculated values with measured values. 4- Open and save files in Multisim. Procedure: Exercise 1 – Series circuit 1. Create the following circuit in Multisim Fig. 1 1
2 Verify with calculations the displayed values of U1, PR1, PR2 and PR3. Note that PR2 is a differential probe which measures the voltage drop across R3. Enter your calculations below: U1=240/ (1k+1.5k+2.2k+0.5k)=46.2mA PR1=240-(46mA*1k)=194 V PR2=240-(46mA*1k)- (46mA*1.5k)- (46mA*0.5k)=102 PR3=(46mA)2*0.5k=1.06 W 3. Save your File as : EET-129 Lab 1 Ex 1 Marks: Mark. /25 Exercise 2 – Power circuit analysis 1. Create the following circuit in Multisim 2. 2
Fig. 2 3. Adjust the increment steps of R2 to 10 % (to access the configuration screen double-click on the symbol of R2). NOTE: (the display is a % of 1 kΩ i.e 10% of 1kΩ= 100 Ω) 4. Change the setting of R2 until its power dissipation (measured by PR2) is maximum. What is its value? Explain why (hint: review theorems from EET-117 Theory 1). 3 . The power dissipation is high when the resistance value is at 60% i.e 600 Ω. According to theory P=VI ,the circuit is in series so they have same current flowing and the voltage drop depends on I and R ; if I is same than it depends on R. Since they are in series when and if there is only two resistor the power dissipation is high when they have same value. Marks: Mark. /25 5. Save your File as : EET-129 Lab 1 Ex 2
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