eet 129 lab 1 report
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Centennial College *
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Electrical Engineering
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Feb 20, 2024
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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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