### Linear Circuit Analysis (Th.) | (ET-124) | (Section B)

Linear Circuit Analysis is the first course of the three-course sequence covering the Electric Circuits and Electronics stream.

First portion of this course introduces concepts of charge, current, and voltage to be followed with the description of current and voltage sources. An introduction to networks and circuits is accompanied by a detailed discussion of Ohm’s law and Kirchhoff’s laws. This is followed by circuit analysis techniques using Nodal and Mesh Analysis with particular reference to super-node and super-mesh. A comparison of Nodal and Mesh analysis is also made. The first portion will also cover the Circuit Analysis Techniques including linearity and superposition, source transformations; important theorems like Thevenin’s, Norton’s, reciprocity theorem, and Maximum Power Transfer Theorem. The circuit reduction techniques covering Delta-Wye conversion are also covered to allow the students to analyze the simplified circuits.

Second Portion of this Course will introduce capacitance, inductance and their series and parallel combination. First-order RL, RC Circuits, and second-order RLC circuits are also taught to find the transient and steady-state response of these kinds of circuits.

Third portion of this course introduces AC fundamentals, Periodic function, RMS, effective, average, and maximum values of current and voltage for periodic waveforms, the study of simple circuits using instantaneous values of current and voltages, introduction to the three-phase system. Phasor Quantities, the complex expression for current, voltage, and impedance.

Prerequisite: NIL

Catalog Data:             Course Code:                           ET-124

Course Title:                             Linear Circuit Analysis (Th.)

Credit Hours:                            3

Course Designation:                 Core

No of Sessions per week:         1 (Total 16 sessions)

Session Duration:                     180 min

Time of Class Meeting:             02:00 PM to 05:00 PM (Tuesday)

Program Learning Outcome: This course is designed in conjunction with the following PLOs.

PLO 1. Engineering Knowledge: An ability to apply knowledge of mathematics, science, engineering fundamentals, and an engineering specialization to the solution of complex engineering problems.

PLO 2. Problem Analysis: An ability to identify, formulate, research literature, and analyze complex engineering problems reaching substantiated conclusions using first principles of mathematics, natural sciences, and engineering sciences.

Course Learning Outcome (CLO):

Upon successful completion of this course, the student will be able to:

 CLO No Course Learning Outcome (CLO) Statements Taxonomy Domain Mapped PLO Assessment CLO-1 Understand the basic concepts of network laws and theorems used to solve the linear circuits. C1, C3 (Remembering & Applying) PLO 1 A1, Q1, MP1, FP1 CLO-2 Explain the behavior of energy storing elements and their transient & step response analysis. C2 (Understanding) PLO 2 A2, Q2, MP2, FP2 CLO-3 Comprehend the basics of AC fundamentals & their phasor representation. C2 (Understanding) PLO 2 A3, Q3, FP3
Note: A=Assignment, Q=Quiz, MP= Mid Part, FP= Final Part

Textbook:
1. C Alexander and M Sadiku, "Fundamentals of Electric Circuits", McGraw- Hill, Latest Edition
2. W Hayt, J Kemmerly, and S Durbin, "Engineering Circuit Analysis", McGraw- Hill, Latest Edition

Reference Books:

1. Hughes, E., 1960. Electrical technology.
2. Floyd, “Circuit Analysis”

Evaluation Criteria:

1. Assignments                                                             10%

2. Quizzes                                                                     10%

3. Mid-Term Exam                                                         30%

4. Final Exam                                                                50%

COURSE DISTRIBUTION ON WEEKLY BASIS

 Weeks Topics Chapter CLO WEEK 01 Basic Concepts Introduction Systems of Units Voltage, Current, Power and Energy  Circuit elements (R, L, C, ideal operational amplifiers, ideal transformer) Independent and Dependent Sources 1 CLO 1 WEEK 02 Basic Laws Introduction Ohm’s Law Nodes, Branches, and Loops Kirchhoff’s Laws Series Resisters and Voltage Division Parallel Resistors and Current Divisions 2 CLO 1 WEEK 03 Wye-Delta Transformations Delta to Wye Conversion Wye to Delta Conversion Methods of Analysis Introduction Nodal Analysis 2, 3 CLO 1 WEEK 04 Methods of Analysis Nodal Analysis with Voltage Source Mesh Analysis 3 CLO 1 WEEK 05 Methods of Analysis Mesh Analysis with Current Source Inspection Method for Nodal and Mesh Analysis 3 CLO 1 WEEK 06 Circuits Theorems Introduction Linearity Property Superposition Theorems Source Transformation 4 CLO 1 WEEK 07 Circuits Theorems Thevenin’s Theorems Norton’s Theorem 4 CLO 1 WEEK 08 Circuits Theorems Reciprocity Theorem Maximum Power Transfer Theorem 4, Notes CLO 1 WEEK 09 Mid Semester Exam WEEK 10 Capacitors and Inductors Introduction Capacitors, Inductors Series and Parallel Capacitors Series and parallel Inductors 6 CLO 2 WEEK 11 First Order Circuits Introduction The Source-free RC Circuit The Source-free RL Circuit Problems 7 CLO 2 WEEK 12 First Order Circuits Step Response of an RC Circuit Step Response of an RL Circuit 7 CLO 2 WEEK 13 Second-Order Circuit Introduction The Source-Free Series RLC Circuit 8 CLO 2 WEEK 14 Second-Order Circuit The Source-Free Parallel RLC Circuit 8 CLO 2 WEEK 15 Sinusoids and Phasors Introduction Sinusoids Phasors Phasor Relationships for Circuit Elements Impedance and Admittance 9 CLO 3 WEEK 16 AC Power Analysis Introduction Instantaneous and Average Power Effective or RMS Value 11 CLO 3 WEEK 17 Three-Phase Circuits Introduction Balanced Three-Phase Voltages 12 CLO 3 WEEK 18 End Semester Exam