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Question: c6 co2 po2 po3 po4 b the phaseshift oscillator applies...

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(C6, CO2, PO2, PO3, PO4) (b) The phase-shift oscillator applies the basic development of a feedback circuit. Pengayun fasa-alih mengaplikasikan pembangunan asas litar suapbalik./ (C4, CO2, PO2, PO3, P04) i) Calculate the resonant frequency of phase-shift oscillator with the given R 20 K2 and C = 1400 pF. Kirakan nilai frekuensi getaran bagi pengayun fasa-alih dengan diberikan R- 20 kQ dan C = 1400 pF.] (4 Marks/ Markah) (C6, CO2, PO2, PO3, P04) (i) Redesign the above phase shift oscillator in Question 4(b)) if the resonant frequency is reduced to f 988 Hz and the capacitor value is maintained. Sketch the designed circuit. Rekabentukkan pengayun fasa-alih di atas dalam Soalan 4(b) jika frekuensi getaran dikurangkan pada f988Hz dan nilai kapasitor dikekalkan Lakorkan litar yang direkabentuk tersebut.1 (6 Marks/ Markah) (С6, CO2, PO2, PO3, P04) (c) Design a Wien-Bridge oscillator for operation at f= 10 kHz and RfR=120 ks2. Assume the parameter values where necessary. Sketch the designed circuit. Rekabentukkan sesebuah pengaun Wien-Bridge bagi operasi pada f 10 kHz dan Rs R-120 kQ. Anggarkan nilai-nilai parameter di mana perlu. Lakarkan litar yang direkebentuk tersebut (6 Marks/ Markah)

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