ELECTRIC CIRCUIT ANALYSIS (18EE32)

 ELECTRIC CIRCUIT ANALYSIS

Course Code 18EE32 CIE Marks 40
Teaching Hours/Week (L: T:P) (3:2:0) SEE Marks 60
Credits 04 Exam Hours 03

Course Learning Objectives:

· To familiarize the basic laws, source transformations, theorems and the methods of analyzing electrical circuits.
· To explain the use of network theorems and the concept of resonance.
· To familiarize the analysis of three-phase circuits, two port networks and networks with non- sinusoidal inputs.
· To explain the importance of initial conditions, their evaluation and transient analysis of R-L and R-C
circuits.
· To impart basic knowledge on network analysis using Laplace transforms.

Module-1

Basic Concepts: Active and passive elements, Concept of ideal and practical sources. Source
transformation and Source shifting, Concept of Super-Mesh and Super node analysis. Analysis of
networks by (i) Network reduction method including star – delta transformation, (ii) Mesh and Node voltage methods for ac and DC circuits with independent and dependent sources. Duality.

 

Module-2

Network Theorems: Super Position theorem, Reciprocity theorem, Thevenin’s theorem, Norton’s theorem,Maximum power transfer theorem and Millman’s theorem. Analysis of networks, with and without dependent ac and DC sources.

Module-3

Resonant Circuits: Analysis of simple series RLC and parallel RLC circuits under resonances.
Problems on Resonant frequency, Bandwidth and Quality factor at resonance
Transient Analysis: Transient analysis of RL and RC circuits under DC excitations: Behavior of
circuit elements under switching action , Evaluation of initial conditions.

 

Module-4

Laplace Transformation: Laplace transformation (LT), LT of Impulse, Step, Ramp, Sinusoidal signals
and shifted functions. Waveform synthesis. Initial and Final value theorems.

 

Module-5

Unbalanced Three Phase Systems: Analysis of three phase systems, calculation of real and reactive Powers by direct application of mesh and nodal analysis. Two Port networks: Definition, Open circuit impedance, Short circuit admittance and Transmission parameters and their evaluation for simple circuits, relationships between parameter sets.

 

Course Outcomes: At the end of the course the student will be able to:

· Understand the basic concepts, basic laws and methods of analysis of DC and AC networks and reduce
the complexity of network using source shifting, source transformation and network reduction using
transformations.
· Solve complex electric circuits using network theorems.
· Discuss resonance in series and parallel circuits and also the importance of initial conditions and their
evaluation.
· Synthesize typical waveforms using Laplace transformation.
· Solve unbalanced three phase systems and also evaluate the performance of two port networks.

Question paper pattern:

· The question paper will have ten questions.
· Each full question is for 20 marks.
· There will be 2 full questions (with a maximum of three sub questions in one full question) from
each module.
· Each full question with sub questions will cover the contents under a module.
· Students will have to answer 5 full questions, selecting one full question from each module.

Textbooks

1 Engineering Circuit Analysis William H Hayt etal Mc Graw Hill 8th Edition,2014
2 Network Analysis M.E. Vanvalkenburg Pearson 3rd Edition,2014
3 Fundamentals of Electric Circuits Charles K Alexander Matthew N O Sadiku Mc Graw Hill 5th Edition,2013

Reference Books

1 Engineering Circuit Analysis J David Irwin et al Wiley India 10th Edition, 2014 2 Electric Circuits Mahmood Nahvi Mc Graw Hill 5th Edition,2009
3 Introduction to Electric Circuits Richard C Dorf and James A SvobodaWiley 9th Edition, 2015
4 Circuit Analysis; Theory and Practice Allan H Robbins Wilhelm C Miller Cengage 5th Edition, 2013
5 Basic Electrical Engineering V K Mehta, Rohi Mehta S Chand 6th Edition 2015