B.TECH - Semester 4 electronics circuits Question Paper 2021 (dec)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Discuss like working of a typical surrent mirror circuil.
- Explain how CMIR1R vanes wilh respect lo frequency.
- Explain the non-ideal characteristics of a differential amplifier.
- How does negalive leedback increases bandwidth of an amplifier?
- Exolain the effects of feedback on amplifier poles.
- Expiain dominant-pale compensation.
- Explain Barkhausean criteria and how it is sallsfied for a RC phase shift oscillator.
- Explain how Iransislor function as a switch. Answer any two questions from each module. Each carries 10 marks.
- Analyse a BJT differential amplifier for differential gains.
- Discuss the small signal operation of a MOS differential amplifier and derive theexpression of CMRR.
- Wiie shoit nales an current mirror circuils.
- Wiln circuil diagram explain a Cascode amplifier. Mention ids imporianl realures.
- Analyse a series-shunl amplifier and derive the equalion for ils loop gain, input impedance and outpul impedance.
- Draw and explain the four leedback lopologies used in amplifiers. Compare their inpul and oulpul resislances.
- Draw the circuit of a Colpill oscillator. Derive the Irequency of oscillations.
- Explain with necessary figures the working of Schmitt Irigger.
- Explain the functioning of a typical cursent sweep circuil. What are the advanlages of current sweep circuil? $$ \{6 \times 10=60 \text { Marks }\} $$ ## 2