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usi380k.theexpertta.com Home Student: cara.croft@okstate.edu My Account Log Out I Help Homework For Chapter 23 TA-Shiyuan Begin Date: 10/25/2017 11:20:00 AM - Due Date: 11/4/2017 10:30:00 AM End Date: 11/4/72 AM (10%) Problem 9: An RC circuit consists of a 47.5 resistor and a 4.5 F capacitor cosh0 Assignment Status Click here for detailed view 50% Part (a) Find its impedance Z at 75 Hz in . Grade Su Deduction Potential Problem Statu:s Completed 2 Completed 3 Completed Completed 5 Completed 6 Completed Completed 8 Completed sin0 cotanasin0 atan acotanO cos tan Submissi acos0 %per a detailedv in0 *12 3 0 coshOtanh0cotanh0 Degrees Radians END Submit Hint Feedbachk I give up! Partial Hints: 4% deduction per hint. Hints remaining: 3 Feedback: 5% deduction per feedback 10 50% Part (b) Find its impedance Z at 9 kHz in . All content © 2017 Expert TA, ucExplanation / Answer
impedance z = sqrt(R^2+(1/wc)^2)
a) if f = 75 Hz
z = sqrt(47.5^2+(1/2*3.14*75*4.5*10^-6)^2) = 473.9 ohm
b) if f = 9 kHz
z = 47.66 ohm
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