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Q1) describe operation of transformer coupled and design its circuit diagram.

Q2) prepare the comparisons of Class A, Class B, Class C and Class AB amplifier.

Q3) prepare a brief note on the crossover distortion.

Q4) describe what is thermal runaway and how it can be prevented.

Q5) describe the types of negative feedback and also draw their block diagrams.

Q6) Specify which type of feedback is used in the oscillator. describe the formula for the frequency of oscillations for Hartley and Colpitt’s oscillator.

Q7) describe the operation of Wein bridge oscillator with the help of circuit diagram.

Q8) Describe the comparisons between negative and positive feedback effects with respect to the bandwidth, gain, input impedance and the output impedance.

Q9) State the criterion of barkhausen and provide some types of the oscillators.

Q10) Develop the circuit diagram of the RC phase shift oscillator. describe the formula of the frequency oscillations.

Q11) In the RC phase shift oscillator, if its frequency of oscillation is 955 Hz and R1=R2=R3= 680 K?. Determine the value of capacitors.

Q12) describe some of the negative feedback.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M911891

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