About this previous year paper
This document is the B.Tech (Semester III) Theory Examination 2018–19 question paper for the subject Network Analysis and Synthesis (REE305). It consists of two printed pages and carries a total of 70 marks, as shown in the provided images.
The question paper is divided into Section A and Section B, covering fundamental and advanced concepts of electrical network analysis.
Section A contains short-answer questions (2 × 7 = 14 marks) focusing on essential theoretical concepts. Students are required to:
Explain continuous and discrete time signals
Obtain the Laplace transform of e−tcoswte^{-t} \cos wte−tcoswt
Describe conditions for transfer function
Write the applications of Bode plots
Explain parameters of two-port networks
Define Hurwitz polynomial
Describe characteristics of positive real functions (PRFs)
(Referenced from Page 1 of the uploaded file)
These questions are conceptual and test the understanding of signal behavior, stability criteria, network properties, and Laplace-transform-based analysis.
Section B contains long-answer questions (7 × 3 = 21 marks + 7 marks separately), where students must attempt any three. These questions require deeper knowledge and involve comparisons, derivations, proof-based answers, and circuit analysis. Topics include:
Difference between mesh analysis and node voltage analysis
Linear & nonlinear circuits, active & passive circuits
Maximum power transfer theorem (statement and proof)
Stability criteria using Routh–Hurwitz method
(Page 1)
The final question (Q7), shown on Page 2, includes circuit diagrams requiring practical numerical calculations:
Part (a): Determining current through a 1Ω resistor using Thevenin’s theorem
Part (b): Finding poles and zeros of the transfer function N(s)=(s+1)(s2+2s+2)N(s) = \frac{(s+1)}{(s^2 + 2s + 2)}N(s)=(s2+2s+2)(s+1)
These problems involve understanding of real-world network reduction and transfer-function behavior. (Page 2)
Overall, this question paper assesses a student's ability to analyze electrical networks using classical methods, Laplace transforms, frequency-response techniques, and stability analysis. It blends theoretical concepts with circuit-based numerical applications, making it highly relevant for students pursuing electrical engineering fundamentals.