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ELE302 - Lab 4.docx-3

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Toronto Metropolitan University**We aren't endorsed by this school
Course
ELE 302
Subject
Electrical Engineering
Date
Feb 8, 2024
Pages
12
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ii) Let L = 0.1H and C = 0.01μF. Select the value of R that will set Q at 0.707. Under this condition, the circuit is said to be a Butterworth (or maximally-flat) lowpass filter. Determine the value of Q when the value of R is: * R = 1kΩ * R = 10kΩ Recall: ࠵? = 1 ࠵? ࠵? ࠵? 0. 707 = 1 ࠵? 0.1 0.01×10 −6 ∴ ࠵? = 4. 47࠵?Ω __________________________ ࠵? = 1࠵?Ω ࠵? = 1 1000 0.1 0.01×10 −6 ∴ ࠵? = 3. 16 __________________________ ࠵? = 10࠵?Ω ࠵? = 1 10000 0.1 0.01×10 −6 ∴ ࠵? = 0. 316
iii) Use Multisim to plot the magnitude (in dB) and phase (in degrees) of [V o /V i ] for the three Q- values of part ii), over the frequency range 100Hz to 50kHz. ࠵? = 0. 707 ࠵? = 3. 16
࠵? = 0. 316
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