Q1) A system is described by the following open loop transfer function: R(s) 1 C(s) K s2 + 5s + 6 a) Investigate the stability of the open loop system. b) Draw the root locus of the system e) Determine the closed loop stability of the wystem (1e. the value of K that keeps the system stable) 1 Add file

slove 5 (Use a BJT op-amp) 1 You’ve been asked to build an alarm system using monstable multvibrator having an active time pf 100msec.. Explain the principle of operation and the type feedback of the op-amp. What is the advantage of this circuit? 2  You’ve been asked to build a low frequency square wave generator using a basic comparator having a frequency of 10kHz and 50% duty cycle. Explain the principle of operation and the type of feedback of the op-amp. What is the advantage of this circuit? 3 3 Build a Wein-Bridge oscillator using, C=1µF and +10V power supply to produce 10 kHz sinusoidal waveform. Generate your plots and compare output results. Highlight any discrepancies and discuss what happens if we want to increase the frequency to 100 kHz. 4 Build a high frequency Colpitts oscillator producing 10kHz Discuss its advantage over RC oscillators. How can you modify the circuit to include a crystal in you circuit. What is a typical application of such an oscillator? 5  Discuss the…

Design a collector-feedback circuit using with Vcc = 5 V, Ic = 10 mA, and VCE = 1.5 V.

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