MMMUT Electronics and Communication Engineering previous year question paper for ELECTRONICS (BEC 251), semester 4, Minor 1 2026. All 8 questions are listed below, each with a written answer on Nexsus.
Paper details
Subject: ELECTRONICS (BEC 251)
Branch: Electronics and Communication Engineering
Semester: 4
Exam: Minor 1 2026
Questions: 8
Questions asked in ELECTRONICS Minor 1 2026
Q1(a). What is an Op-amp? Explain each block diagram of operational amplifier and list of advantage and disadvantage of ICs. [3 marks]
Q1(b). Figure 1 shows two circuits for generating a constant current I0 = 10 μA which operate from a 10V supply. Determine the values of the required resistors, assuming that VAE is 0.7 V at a current of 1 mA and neglecting the effect of find a. [2 marks]
Q1(c). Deduce the expression of output current for Wilson current mirror and its circuit diagram also explain its advantages? [2 marks]
Q2.. Attempt any Two parts of the following. Q.2 (a) is compulsory.
Q2(a). With the help of circuit diagram determine output voltage expression of an OPAMP as: (1) Integrator (2) Differentiator [3 marks]
Q2(b). How does a Precision Rectifier circuit operate, and draw its transfer characteristics? [2 marks]
Q2(c). Explain the working of Schmitt trigger and draw its transfer characteristics. [2 marks]
QQ1.. Attempt any Two parts of the following. Q.1 (a) is compulsory.