__EE3251__

__ELECTRIC CIRCUIT ANALYSIS__

__ __

**OBJECTIVES:**

•
To introduce electric circuits and its analysis

•
To provide key concepts to analyze and understand electrical circuits

•
To impart knowledge on solving circuit equations using network theorems

•
To educate on obtaining the transient response of circuits.

•
To introduce the phenomenon of resonance in coupled circuits.

•
To introduce Phasor diagrams and analysis of single &three phase circuits

**UNIT I**

**BASIC CIRCUITS ANALYSIS**

Fundamentals
concepts of R, L and C elements-Energy Sources- Ohm's Law -Kirchhoff 's Laws -
DC Circuits - Resistors in series and parallel circuits A.C Circuits - Average
and RMS Value - Complex Impedance - Phasor diagram - Real and Reactive Power,
Power Factor, Energy -Mesh current and node voltage methods of analysis D.C and
A.C Circuits.

**UNIT II**

**NETWORK REDUCTION AND THEOREMS FOR DC AND AC CIRCUITS **

Network
reduction: voltage and current division, source transformation star delta
conversion. Theorems - Superposition, Thevenin's and Norton's Theorem - Maximum
power transfer theorem - Reciprocity Theorem - Millman's theorem- Tellegen's
Theorem-Statement, application to DC and AC Circuits.

**UNIT III**

**TRANSIENT RESPONSE ANALYSIS**

Introduction
Laplace transforms and inverse Laplace transforms- standard test signals
-Transient response of RL, RC and RLC circuits using Laplace transform for
Source free, Step input and Sinusoidal input.

**UNIT IV**

**RESONANCE AND COUPLED CIRCUITS**

Series
and parallel resonance-frequency response - Quality factor and Bandwidth - Self
and mutual inductance Coefficient of coupling - Dot rule-Analysis of coupled
circuits- Single Tuned circuits.

**UNIT V**

**THREE PHASE CIRCUITS**

Analysis
of three phase 3-wire and 4-wire circuits with star and delta connected loads,
balanced and unbalanced - phasor diagram of voltages and currents - power
measurement in three phase circuits- Power Factor Calculations.

**TOTAL:
60 PERIODS**

**OUTCOMES:**

After
completing this course, the students will be able to:

**CO1:**
Explain circuit's behavior using circuit laws.

**CO2:**
Apply mesh analysis/ nodal analysis / network theorems to determine behavior of
the given DC and AC circuit

**CO3:**
Compute the transient response of first order and second order systems to step
and sinusoidal input

**CO4:**
Compute power, line/ phase voltage and currents of the given three phase
circuit

**CO5:**
Explain the frequency response of series and parallel RLC circuits

**CO6:**
Explain the behavior of magnetically coupled circuits.

**TEXT BOOKS:**

1.
William H. HaytJr, Jack E. Kemmerly and Steven M. Durbin, "Engineering
Circuits Analysis", McGraw Hill publishers, 9th edition, New Delhi, 2020.

2.
Charles K. Alexander, Mathew N.O. Sadiku, "Fundamentals of Electric
Circuits", Second Edition, McGraw Hill, 2019.

3.
Allan H. Robbins, Wilhelm C. Miller, "Circuit Analysis Theory and
Practice", Cengage Learning India, 2013.

**REFERENCES**

1.
Chakrabarti A, "Circuits Theory (Analysis and synthesis), Dhanpat Rai&
Sons, New Delhi, 2020.

2
Joseph A. Edminister, Mahmood Nahvi, "Electric circuits", Schaum's
series, McGraw-Hill, First Edition, 2019.

3.
M E Van Valkenburg, "Network Analysis", Prentice-Hall of India Pvt
Ltd, New Delhi, 2015.

4.
Richard C. Dorf and James A. Svoboda, "Introduction to Electric
Circuits", 7th Edition, John Wiley Sons, Inc. 2018.

5.
Sudhakar A and Shyam Mohan SP, "Circuits and Networks Analysis and
Synthesis", McGraHill, 2015.