--- title: 'EEE 105 - Electrical Circuits II' url: 'https://eee.buet.ac.bd/academics/undergraduate/courses/eee105' markdown: 'https://eee.buet.ac.bd/academics/undergraduate/courses/eee105.md' date: '2026-04-28' description: 'EEE 105 - Electrical Circuits II Section A: General Information Course Title: Electrical Circuits II Type of Course: Compulsory, Theory Offered to: EEE Pre-requisite Course(s): None Section B: Course Details Course Content (As approved by the Academic Council) Sinusoids and Phasors, Phas…' taxonomy: archives_month: - apr_2026 archives_year: - '2026' --- # EEE 105 - Electrical Circuits II ## Section A: General Information - **Course Title:** Electrical Circuits II - **Type of Course:** Compulsory, Theory - **Offered to:** EEE - **Pre-requisite Course(s):** None ## Section B: Course Details ### Course Content (As approved by the Academic Council) Sinusoids and Phasors, Phasor Relationships for Circuit Elements, Impedance and Admittance, Impedance and Admittance, Kirchhoff’s Laws in the Frequency Domain, Impedance Combinations, Applications; Sinusoidal Steady-State Analysis, Nodal and Mesh Analysis, Superposition Theorem, Source Transformation, Thevenin and Norton Equivalent Circuits; AC Power Analysis, Instantaneous and Average Power, Maximum Average Power Transfer, Effective or RMS Value, Apparent Power and Power Factor, Complex Power, Conservation of AC Power, Power Factor Correction, Applications; Transients in AC circuits. Three-Phase Circuits, Balanced Three-Phase Voltages, Balanced Wye-Wye Connection, Balanced Wye-Delta, Delta-Delta and Delta-Wye Connection, Power in a Balanced System, Unbalanced Three-Phase Systems, Power Factor Correction, Applications; Magnetically Coupled Circuits, Mutual Inductance, Energy in a Coupled Circuit and Ideal Transformers. Frequency Response, Transfer Function, The Decibel Scale, Bode Plots, Series and Parallel Resonance, Passive Filters; Scaling; Nonsinusoidal Waveforms, Composite Waveforms, Fourier Series, Frequency Spectrum, Total harmonic distortion and its effect, Average Power and RMS Values of a Nonsinusoidal Waveform, Circuit Response to a Nonsinusoidal Waveform, Power factor a non-linear load, RMS and True RMS values. ### Course Objectives - To provide a clear understanding of phasor analysis of AC electrical circuits using basic components in terms of voltage, current and power/energy. 1. To develop analytical skills to design and analyze AC circuits using superposition principle, source conversion technique, Thevenin theorem, Norton theorem and maximum power transfer theorem. - To introduce some basic concepts of 3-phase circuits that are used in power systems. - To introduce with the mutual inductance and its applications. 2. To expose the area of frequency response of AC electrical circuits for designini filters and analyzing transients and nonsinusoidal waveforms. Knowledge required Basics of physics, equation solver, calculus and differential equation solver. ### Course Outcomes | CO No. | CO Statement | Corresponding PO(s)\* | Domains and Taxonomy level(s)\*\* | Delivery Method(s) and Activity(-ies) | Assessment Tool(s) | |---|---|---|---|---|---| | 1 | **Derive** the expressions of voltage, current and power/energy of RL, RC and RLC circuits based on the concepts of phasors | PO(a) | C3 | Lectures, Tutorials, Homeworks | Assignment, Class test, Final exam | | 2 | **Employ** circuit laws, analysis methods, theorems to solve various AC circuits. | PO(b) | C4 | Lectures, Tutorials, Homeworks | Assignment, Class test, Final exam | | 3 | **Analyze** the 3-phase circuits with different combination of sources and loads that are used in power systems. | PO(b) | C4 | Lectures, Tutorials, Homeworks | Assignment, Class test, Final exam | | | Apply the concepts of mutual inductance in AC circuit analysis | PO(b) | C3 | Lectures, Tutorials, Homeworks | Assignment, Class test, Final exam | | 4 | **Apply** differential equations to solve first and second order transient circuits,. | PO(a) | C3 | Lectures, Tutorials, Homeworks | Assignment, Class test, Final exam | | 5 | Analyze the frequency response curve, nonsinusoidal waveforms | PO(b) | C4 | Lectures, Tutorials, Homeworks | Assignment, Class test, Final exam | Cognitive Domain Taxonomy Levels: **C1** – Knowledge, **C2** – Comprehension, **C3** – Application, **C4** – Analysis, **C5** – Synthesis, **C6** – Evaluation, **Affective Domain Taxonomy Levels**: **A1**: Receive; **A2:** Respond; **A3:** Value (demonstrate); **A4:** Organize; **A5:** Characterize; **Psychomotor Domain Taxonomy Levels:** **P1:** Perception; **P2**: Set; **P3:** Guided Response; **P4:** Mechanism; **P5:** Complex Overt Response; **P6:** Adaptation; **P7:** Organization Program Outcomes (PO): **PO(a)** Engineering Knowledge, **PO(b)** Problem Analysis, **PO(c)** Design/development Solution, **PO(d)** Investigation, **PO(e)** Modern tool usage, **PO(f)** The Engineer and Society, **PO(g)** Environment and sustainability, **PO(h)** Ethics, **PO(i)** Individual work and team work, **PO(j)**. Communication, **PO(k)** Project management and finance, PO**(l)** Life-long Learning \* For details of program outcome (PO) statements, please see the departmental website or course curriculum ### Mapping of Knowledge Profile, Complex Engineering Problem Solving and Complex Engineering Activities | K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | A1 | A2 | A3 | A4 | A5 | |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| | 🗸 | 🗸 | 🗸 | 🗸 | | | | | 🗸 | 🗸 | 🗸 | | | | | | | | | | ### Lecture Plan | **Week** | **Lectures** | **Topic** | |---|---|---| | 1 | 1-3 | Sinusoids and Phasors, Phasor Relationships for Circuit Elements, Impedance and Admittance, Impedance and Admittance, Kirchhoff’s Laws in the Frequency Domain | | 2 | 4-6 | Impedance Combinations, Applications, Sinusoidal Steady-State Analysis, Nodal and Mesh Analysis, Superposition Theorem | | 3 | 7-9 | Source Transformation, Thevenin and Norton Equivalent Circuits; | | 4 | 10-12 | AC Power Analysis, Instantaneous and Average Power, Maximum Average Power Transfer, Effective or RMS Value, Apparent Power and Power Factor, | | 5 | 13-15 | Complex Power, Conservation of AC Power, Power Factor Correction, Applications | | 6 | 16-18 | Transients in AC circuits. | | 7 | 19-21 | Three-Phase Circuits, Balanced Three-Phase Voltages, Balanced Wye-Wye Connection, Balanced Wye-Delta, Delta-Delta and Delta-Wye Connection, | | **8** | 22-24 | Power in a Balanced System, Unbalanced Three-Phase Systems, Power Factor Correction, Applications | | **9** | 25-27 | Magnetically Coupled Circuits, Mutual Inductance, Energy in a Coupled Circuit and Ideal Transformers. | | 10 | 28-30 | Frequency Response, Transfer Function, The Decibel Scale, Bode Plots | | 11 | 31-33 | Series and Parallel Resonance, Passive Filters; Scaling | | 12 | 34-36 | Nonsinusoidal Waveforms, Composite Waveforms, Fourier Series, Frequency Spectrum, Total harmonic distortion and its effect, Average Power and RMS Values of a Nonsinusoidal Waveform, | | 13 | 37-39 | Circuit Response to a Nonsinusoidal Waveform, Power factor a non-linear load, RMS and True RMS values. | ### Assessment Strategy - Class participation will be judged by in-class evaluation; attendance will be recorded in every class. - Continuous assessment will be done in the form of quizzes, assignments, in-class evaluations. - Final Examination: A comprehensive term final examination will be held at the end of the Term following the guideline of academic Council. ### Distribution of Marks - Class Participation 10% Homework, Assignment and Quizes 20% - Final Examination 70% - Total 100% ### Textbook/References Fundamentals of Electric Circuits (5th Edition)- Charles K. Alexander, Matthew N. O. Sadiku Circuit Analysis: Theory and Practice, Allan H. Robbins Wilhelm C. Miller Electric Circuits- James William Nilsson Transient Analysis of Electric Power Circuits by the Classical Method in the Examples, A.A.ZELENKOV Online resources or supplementary materials will be shared with the class on a need basis Besides going through relevant topics of the textbook, it is strongly advised that the students follow the class Lectures and discussions regularly for a thorough understanding of the topics. --- ## Navigation - Parent: [Courses](https://eee.buet.ac.bd/academics/undergraduate/courses.md) - Previous: [EEE 102 - Electrical Circuits I Laboratory](https://eee.buet.ac.bd/academics/undergraduate/courses/eee102.md) - Next: [EEE 106 - Electrical Circuits II Laboratory](https://eee.buet.ac.bd/academics/undergraduate/courses/eee106.md)