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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITYHYDERABAD

I Year B.Tech EEE T P C3+1* 0 6

ELECTRICAL CIRCUIT ANALYSISObjective :This course introduces the basic concepts of circuit analysis which is the foundation for all subjects of the

Electrical Engineering discipline. The emphasis of this course is laid on the basic analysis of circuits whichincludes Single phase circuits, magnetic circuits, theorems, transient analysis and network topology.

UNIT I Introduction to Electrical CircuitsCircuit Concept R-L-C parameters Voltage and Current sources Independent and dependent sources-Source transformation Voltage Current relationship for passive elements Kirchhoffs laws networkreduction techniques series, parallel, series parallel, star-to-delta or delta-to-star transformation.

UNIT II Magnetic CircuitsMagnetic Circuits Faradays laws of electromagnetic induction concept of self and mutual inductance dot convention coefficient of coupling composite magnetic circuit - Analysis of series and parallelmagnetic circuits

UNIT III Single Phase A.C CircuitsR.M.S and Average values and form factor for different periodic wave forms, Steady state analysis of R, L

and C (in series, parallel and series parallel combinations) with sinusoidal excitation Concept ofReactance, Impedance, Susceptance and Admittance Phase and Phase difference concept of powerfactor, Real and Reactive powers J-notation, Complex and Polar forms of representation, Complex power

Locus diagrams series R-L, R-C, R-L-C and parallel combination with variation of various parameters Resonance series, parallel circuits, concept of band width and Q factor.

UNIT IV Three Phase CircuitsThree phase circuits: Phase sequence Star and delta connection Relation between line and phasevoltages and currents in balanced systems Analysis of balanced and Unbalanced 3 phase circuits Measurement of active and reactive power.

UNIT V Network topology Definitions Graph Tree, Basic cutset and Basic Tieset matrices for planar networks Loop and Nodalmethods of analysis of Networks with independent voltage and current sources - Duality & Dual networks.

UNIT VI Network theorems (without proofs)Tellegens, Superposition, Reciprocity, Thevenins, Nortons, Maximum Power Transfer, Millmans andCompensation theorems for d.c. and a.c. excitations.

UNIT VII Transient AnalysisTransient response of R-L, R-C, R-L-C circuits (Series combinations only) for d.c. and sinusoidal excitations

Initial conditions - Solution using differential equation approach and Laplace transform methods ofsolutions.

UNIT VIII Network ParametersTwo port network parameters Z, Y, ABCD and hybrid parameters and their relations concept oftransformed network 2-port network parameters using transformed variables.

TEXT BOOKS:1. Engineering circuit analysis by William Hayt and Jack E. Kimmerly, Mc Graw Hill Company, 6th

edition.

2. Linear circuit analysis (time domain phasor, and Laplace transform approaches)Second edition by RAYMOND A.DeCARLO and PEN-MIN-LIN,Oxford University Press. Second edition 2004.

REFERENCE BOOKS:1. Network Analysis by Vanvalkenburg, PHI.2. Network Theory: - N.C. Jagan & C.Lakshminarayana, B.S Publications.3. Electrical Circuits: S.Sudhakar, P.S.M.Satyanarayana, TMH Publication.4. Electric Circuits by A. Chakrabarthy, Dhanipat Rai & Co.