9780133923835 Boylestad ICA13 IM CH21 - USNA _Textbook_Sol/HW2… ·...
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Transcript of 9780133923835 Boylestad ICA13 IM CH21 - USNA _Textbook_Sol/HW2… ·...
Chapter 21 3. a. XL = 2 kΩ
b. I = = 120 mA
c. VR = IR = (120 mA)(100 Ω) = 12 V = EVL = IXL = (120 mA)(2 kΩ) = 240 VVC = IXC = (120 mA)(2 kΩ) = 240 VVL = VC = 20 VR
d. Qs = = 20 (high Q)
e. XL = 2πfL, L = = 63.7 mH
XC = , C = = 15,920 pF
f. BW = = 250 Hz
g. f2 = fs + = 5 kHz + = 5.13 kHz
f1 = fs - = 5 kHz - = 4.88 kHz
7. a. BW = fi Qs = fs/BW = 2000 Hz/200 Hz = 10
b. Qs = fi XL = QsR = (10)(2 Ω) = 20 Ω
c. L = = 1.59 mH
C = = 3.98 µF
d. f2 = fs + BW/2 = 2000 Hz + 100 Hz = 2100 Hzf1 = fs - BW/2 = 2000 Hz - 100 Hz = 1900 Hz