10EE201 ELECTRIC CIRCUITS AND NETWORKS Credits: 3:1:0 Course Objectives: This Course will provide the students to 1. Develop an understanding of the fundamental elements of electric circuits. 2. Develop the ability to apply the basic theorems to analyze a DC and AC electric circuit. 3. Use mathematical methods such as Laplace and Fourier transforms and some linear algebra techniques and differential equations to solve circuits problems 4. Synthesize a network with stable condition. Course Outcomes: At the end of this course, the student should be able to 1. Analyze simple circuits applying Ohm’s and Kirchhoff’s laws 2. Analyze first-order, second order response of RL, RC and RLC circuits. 3. Demonstrate the network parameters of a transmission cable. 4. Design any non linear network, filters and attenuators for an application Unit I Circuit Analysis System of Units-Electrical Quantities-Circuit elements-Independent and Dependent sourcesOhm’s Law-Kirchhoff’s Laws-Analysis of circuits using Kirchhoff’s law, Source transformation, Wye-Delta transformation - Network graph - tree and cut sets - Cut set and tie set schedule- dual network - Matrix representation and solution of AC and DC networks, Node and Loop basis analysis of AC and DC. Unit II Network Theorems Superposition, Reciprocity, Substitution, Thevenin, Norton, and Maximum Power Transfer Theorems - Problems Unit III Transient Response of Electric Circuits Transient Concepts – Singularity functions-unit step, unit impulse-transient response of simple RL, RC and RLC series and parallel circuits for step input and sinusoidal excitation-Laplace transform application to the solution of RL, RC & RLC circuits: initial and final value theorem and applications – Concept of complex frequency – Driving point and transfer impedances – Poles and zeros of network function. Unit IV Coupled Circuits and Three Phase Circuits Coupled circuits – coefficient of coupling – self and mutual inductances – analysis of coupled circuits – single and double tuned coupled circuits – Three phase circuits – balanced circuits star and delta connected loads - phase sequence - unbalanced circuits - solution of unbalanced star and delta connected loads – power measurement by two wattmeter method. Unit V Two Port Networks and Filters Driving point and transfer impedance/admittance - voltage and current ratios of two port networks - admittance, impedance, hybrid, transmission and image parameters for two port networks – impedance matching – equivalent π and T networks – passive filters as a two port network – characteristics of ideal filter – low pass and high pass filters. Text Books: 1. Navhi and Edminister J A, “ Theory and Problems of Electric circuits” Tata McGraw- Hill Publishing Company Limited, New Delhi, 2007. 2. Sudhakar , Shyammohan S Palli, “Circuits and Networks – Analysis and Synthesis”, Tata McGraw- Hill Publishing Company Limited, New Delhi, 2007. Reference Books 1. Charles K Alexander and Mathew N O Sadiku, “Fundamentals of Electric Circuits”, Tata Mc Graw -Hill Publishing Company Limited, New Delhi, 2007. 2. Jack E Kemmerly, Steven M Durbin and William H Hayt Jr, “Engineering Circuit Analysis”, Tata Mc Graw- Hill Publishing Company Limited, New Delhi, 2006. 3. Sivanandam.S.N., “Electric Circuit Analysis”, Vikas Publishing House Private Limited, New Delhi, 2001.