B.TECH - Semester 3 electronic cirucits Question Paper 2020 (may)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Define CMRR.
- What is the need of short circuit protection?
- Describe stability criteria in a feedback circuit.
- What is Miller effect?
- List the different types of distortion in power amplifiers.
- What are the stability factors to be considered in transistor biasing?
- What is distortion and efficiency of power amplifiers?
- List any four advantages of negative feedback.
- Compare Class B and Class C amplifiers.
- Classify MOSFETs. Answer any one questions from each Module. Each full question carries 20 marks. Module - I11. (a) Draw the high frequency hybrid Pi model for a transistor in CE configurationDerive the expression for all the parameters. 15(b) Expla...
- (a) Explain the small signal equivalent circuit of MOS differential amplifier. ..... 10
- (b) Explain about different MOS biasing circuits. ..... 10 OR
- (a) Explain different MOSFET Current source circuits ..... 10(b) Draw the circuit diagram of CD MOSFET amplifier and derive theexpression for current gain, input impedance and output impedance. 10 Module - III
- (a) Explain current series feedback and voltage shunt feedback circuit and derive the expression for input impedance ,output impedance and voltage gain. ..... 15
- (b) Explain about crystal oscillators. ..... 5 OR
- (a) Explain the working of Hartley and colpitt's oscillator and derive the expression for frequency of oscillation. ..... 15
- (b) Explain about syncronous tunning. ..... 5 Module - IV
- (a) Discuss the working of bootstrap sweep and derive the expression for its time period. ..... 10
- (b) Explain about short circuit protection circuit. ..... 10 OR
- (a) Explain Class $B$ and Class $A B$ amplifier and derive the expression for efficiency and distortion. ..... 12
- (b) Explain the working of series voltage regulator with feedback. ..... 8