Friday, March 12, 2021

Electric Circuits and Networks by K. S. Suresh Kumar

Electric Circuits and Networks by K. S. Suresh Kumar 


Contents of Electric Circuits and Networks

1 CIRCUIT VARIABLES AND CIRCUIT ELEMENTS
2 BASIC CIRCUIT LAWS
3 SINGLE ELEMENT CIRCUITS
4 NODAL ANALYSIS AND MESH ANALYSIS OF MEMORYLESS CIRCUITS
5 CIRCUIT THEOREMS
6 THE OPERATIONAL AMPLIFIER AS A CIRCUIT ELEMENT
7 POWER AND ENERGY IN PERIODIC WAVEFORMS
8 THE SINUSOIDAL STEADY-STATE RESPONSE
9 SINUSOIDAL STEADY-STATE IN THREE-PHASE CIRCUITS
10 SIMPLE RL CIRCUITS IN TIME-DOMAIN
12 HIGHER ORDER CIRCUITS IN TIME-DOMAIN
13 DYNAMIC CIRCUITS WITH PERIODIC INPUT – ANALYSIS BY FOURIER SERIES
14 DYNAMIC CIRCUITS WITH APERIODIC INPUTS – ANALYSIS BY FOURIER 
TRANSFORMS
15 ANALYSIS OF DYNAMIC CIRCUITS BY LAPLACE TRANSFORMS
16 TWO-PORT NETWORKS AND PASSIVE FILTERS
17 INTRODUCTION TO NETWORK TOPOLOGY

Preface of Electric Circuits and Networks

The field of electrical and electronic engineering is vast and diverse. However, two topics hold the key to the entire field. They are ‘Circuit Theory’ and ‘Signals and Systems’. Both these topics provide a solid foundation for later learning, as well as for future professional activities. This undergraduate textbook deals with one of these two pivotal subjects in detail. In addition, it connects ‘Circuit Theory’ and ‘Signals and Systems’, thereby preparing the student-reader for a more detailed study of this important subject either concurrently or subsequently. The theory of electric circuits and networks, a subject derived from a more basic subject of electromagnetic fields, is the cornerstone of electrical and electronics engineering. Students need to master this subject well, and assimilate its basic concepts in order to become competent engineers.

Objectives Primary Objective:- To serve as a textbook that will meet students’ and instructors’ need for a two- or three-semester course on electrical circuits and networks for undergraduate students of electrical and electronics engineering (EE), electronics and communications engineering (EC), and allied streams. This textbook introduces, explains and reinforces all the basic concepts of analysis of dynamic circuits in time-domain and frequency-domain. Secondary Objective:- To use circuit theory as a carrier of the fundamentals of linear system and continuous signal analysis so that the students of EE and EC streams are well-prepared to take up a detailed study of higher level subjects like analog and digital electronics, pulse electronics, analog and digital communication systems, digital signal processing, control systems, and power electronics at a later stage.

Electric Circuits in EE and EC Curricula The subject of electric circuits and networks is currently covered in two courses in Indian technical universities. The introductory portion is covered as a part of a course offered in the first year of undergraduate program. It is usually called basic electrical engineering. About half of the course time is devoted to Introductory Circuit Theory covering the basic principles, DC circuit analysis, circuit theorems and single frequency sinusoidal steady-state analysis using phasor theory. This course is usually a core course for all disciplines. Therefore, it is limited very much in its content and depth as far as topics in circuit theory are concerned. The course is aimed at giving an overview of electrical engineering to undergraduate students of all engineering disciplines.

Students of disciplines other than EE and EC need to be given a brief exposure to electrical machines, industrial electronics, power systems etc., in the third semester. Many universities include this content in the form of a course called electrical technology in the third semester for students of other engineering disciplines. This approach makes it necessary to teach them AC steady-state analysis of RLC circuits even before they can be told about transient response in such circuits. The EE students, in fact, need AC phasor analysis only from the fourth or fifth semester since they start on electric machines and power systems.

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