(17%) Problem 5: An RC circuit consists of a 45 ? resistor and a 4.5 ?F capacito

Question

(17%) Problem 5: An RC circuit consists of a 45 ? resistor and a 4.5 ?F capacitor. signment Status Click here for detailed view Grade Summary Potential Late work % Late Potential 100% 75% 75% roblem Status tan() ? 1 Completed 2 Partial 3 Completed 4 Completed cos() cotanO asin acosO atan acotanO sinh coshO tanhOcotanh Submissions Attempts remaining: G per attempt) 0 detailed view Degrees Radians VO Submit Hint I give up Hints: deduction per hint. Hints remaining: Feedback: 19 deduction per feedback. -- 50% Part (b) Find its impedance Z at ll kHz in ?. All content 0 2018 Expert TA.LI.c

Explanation / Answer

Givan That

R = 45 Ohm

C = 4.5 * 10^-6 F

a) f = 85 Hz

Z = sqrt(R^2 + (1/(2*pi*f*C))^2)

Z = sqrt((45)^2 + (1/(2*3.14*85*(4.5*10^-6)))^2)

Z = sqrt(2025 + 173307.7)

Z = 418.73 Ohm

b) f = 11 kHz = 11*10^3 Hz

Z = sqrt(R^2 + (1/(2*pi*f*C))^2)

Z = sqrt((45)^2 + (1/(2*3.14*(11*10^3)*(4.5*10^-6)))^2)

Z = sqrt(2025 + 10.348)

Z = 45.115 Ohm

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