Electrical circuit analysis - 1

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY KAKINADA

II YEAR I SEM B.Tech EEE

Electrical Circuit Analysis-I

Objective:

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 which includes single phase circuits, magnetic circuits, theorems,

transient analysis and network topology.

UNIT-I Introduction to Electrical Circuits

Circuit concepts –Resistor(R)-Inductor(L)-Capacitor(C)-Voltage and Current Sources (Ideal

and Non-Ideal)- Independent and Dependent Sources-Source transformation-Voltage -

Current relationship for passive bilateral elements (for different input signals-square, ramp,

saw tooth, triangular)-Ohm’s law

UNIT-II

Kirchoff’s laws – Network reduction techniques-Series, parallel, series parallel, star-to-delta

or delta-to-star transformation, Nodal analysis, mesh analysis, super node and super mesh for

D.C excitations.

UNIT-III Single Phase A.C Circuits

R.M.S,Average values and form factor for different periodic wave forms – sinusoidal

alternating quantities – Phase and Phase difference – Complex and polar forms of

representations, J-notation, Steady state analysis of R,L and C (in series, parallel and series

parallel combinations) with sinusoidal excitation-Concept of Reactance, Impedance,

Susceptance and Admittance-Power Factor and significance-Real and Reactive power,

Complex Power.

UNIT-IV Locus diagrams & Resonance

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-V Magnetic Circuits

Magnetic circuits-Basic definition of MMF, flux and reluctance-Analogy between electrical

and magnetic circuits, Faraday’s laws of electromagnetic induction-concept of self and

mutual inductance-dot convention-coefficient of coupling-composite magnetic circuitanalysis

of series and parallel magnetic circuits

UNIT-VI Network topology

Definitions – Graph – Tree, Basic cutset and Basic Tieset matrices for planar networks –

Loop and Nodal methods of analysis of Networks with dependent & independent voltage and

current sources – Duality & Dual networks.

UNIT-VII Network theorems –I (Without Proof)

Thevenin’s, Norton’s, Maximum Power Transfer and Millman’s theorems for D.C and

sinusoidal excitations.

UNIT-VIII Network theorems – II (Without Proof)

Tellegen’s, Superposition, Reciprocity and compensation theorems for D.C and sinusoidal

excitations.

Text Books:

• Engineering Circuit Analysis by William Hayt and Jack E.Kemmerley,Mc Graw Hill

Company,6 th edition

• Network Analysis by K.Satya Prasad and S.Sivanagaraju, Cengage Learning

Reference Books:

• Electrical Circuits by A. Sudhakar and Shyammohan S Palli, Tata McGraw- Hill.

• Network Analysis by N.C.Jagan, C.Lakshmi Narayana BS publications 2nd edition.

• Network Analysis: Van Valkenburg; Prentice-Hall of India Private Ltd.