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Subject Description Form Subject Code ENG237 Subject Title Basic Electricity and Electronics I Credit Value 3 Level 2 Pre-requisite/ Co-requisite/ Exclusion Nil Objectives 1. Introduce the fundamental concepts of operation of electric circuits applicable to all engineering students. 2. Develop the ability on solving problems involving electric circuits. 3. Develop skills for experimentation on electric circuits. Intended Subject Learning Outcomes Upon completion of the subject, students will be able to: 1. acquire a good understanding of the electric circuit operating principles; 2. solve simple problems in electric circuits; 3. use suitable instrumentation to carry out experimental investigations to validate the theoretical investigations. Contribution of the Subject to the Attainment of the Programme Outcomes Programme Outcomes: Category A Professional/academic knowledge and skills Programme Outcome 1: This subject contributes to the programme outcome through teaching the fundamentals of electric circuit operating principles and providing the students with an opportunity to practise the application of knowledge. Programme Outcome 2: This subject contributes to the programme outcome by providing the students with an opportunity to conduct experiments. Programme Outcome 5: This subject contributes to the programme outcome by providing the students with an opportunity to solve problems involving electric circuits. Category B Attributes for all-roundedness Programme Outcome 14: This subject contributes to the programme outcome by providing the students with an opportunity to practise working in a team. Subject Synopsis/ Indicative Syllabus Syllabus: 1. DC Circuits Introduction to electric circuits. Potential and potential difference. Charge and flow of charge. Voltage and current as two basic variables. Kirchhoff’s current and voltage laws. Independent and dependent sources. Resistance. Simple circuit styles: voltage divider, current divider, series and parallel circuits. Nodal and mesh analyses. Thévenin and Norton theorems. Power dissipation. Source loading and maximum power transfer. 2. Capacitance, Inductance and First Order Transients Constitutive relations of capacitor and inductor. Brief introduction to physics (electric and magnetic fields). Introduction to time-varying circuits. Simple RC and LC circuits. Important concept of independent state variables. First-order differential equation (with simple solution of exponential form). First order transient analysis. Time-domain solution and transient behaviour of first order circuits. Time constant. 3. Transformers Concept of ideal transformer (assuming sinusoidal voltages and currents). Dot convention. Analyze circuit with ideal transformer. Calculate reflected sources and impedances across ideal transformers. Applications in galvanic isolation and voltage/current level conversion. 4. Steady-state Analysis of AC Circuits Average and rms values. Phasors (rotating vectors). Steady-state analysis of circuits driven by single fixed frequency sinusoidal sources. Impedance and admittance. Analysis approach 1: phasor diagrams for simple circuits. Analysis approach 2: systematic complex number analysis, i.e., same treatment as DC circuits but with complex numbers representing phase and magnitude of AC voltages and currents. Real and reactive powers. Power factor. 5. Digital Logic Circuits Binary number system: addition, subtraction, multiplication and division in binary number systems. Conversion between binary and decimal numbers. Two’s complement. Boolean algebra. Basic logic gates. Flip-flops. Karnaugh maps. Don't care condition. Combinational Logic circuit designs and modules. Laboratory Experiments: 1. Instrumentation and circuit theorems 2. First order transient 3. Simple digital circuits Teaching/ Learning Methodology On a subject of fundamental nature with large classes, lectures are the primary and effective means of conveying the basic circuit principles (outcome 1) and demonstrating suitable application (outcome 2). In order to strengthen the understanding of the basic concepts (outcome 1) and to facilitate small-group discussions on examples and exercises (outcome 2), tutorials with a maximum class size of 20 are provided. Experiments are essential for students to relate the concepts to practical applications (outcome 2) and they are exposed to hand-on experience and proper use of equipment and also analytical skills on interpreting experimental results (outcome 3). Teaching/Learning Methodology Intended Subject Learning Outcomes 1 2 Lectures Tutorials Experiments 3 Alignment of Assessment and Intended Subject Learning Outcomes Specific Assessment Methods/ Task % Weighting Intended Subject Learning Outcomes to be Assessed (Please tick as appropriate) 1 2 3 1. Continuous Assessment (total 40%) Class Tests 16% Assignments 12% Lab Logbooks & Report 12% 2. Examination 60% Total 100% Explanation of the appropriateness of the assessment methods in assessing the intended learning outcomes: It is a level-2 subject covering fundamental concepts of circuit analysis and basic applications. Examination is adopted to assess students on the overall understanding and the ability of applying the concepts. It is supplemented by the mid-term class tests and regular quizzes which provide timely feedbacks to both lecturers and students on various topics of the syllabus. Experiment logbooks and reports reflect the students’ laboratory skills, usages of appropriate equipment and data analysis on experiment results. Student Study Effort Expected Class contact (time-tabled): Lectures Laboratory experiment 26 Hours 9 Hours Other student study effort: Supplementary tutorials/consultations 25 Hours Self-study 42 Hours Total student study effort: Reading List and References 102 Hours Textbook: 1. G. Rizzoni, Fundamentals of Electrical Engineering, 1st ed., New York: McGraw-Hill, 2009. References: 1. C.K. Tse, Linear Circuit Analysis, London: Addison-Wesley, 1998. 2. D.A. Neamen, Micoelectronics: Circuit Analysis and Design, Boston: McGraw-Hill, 3rd ed., 2006. 3. R.A. DeCarlo and P.M. Lin, Linear Circuit Analysis, 2nd ed., Oxford University Press, 2001. 4. A.H. Robbins and W.C. Miller, Circuit Analysis: Theory and Practice, Thomson Learning, 2nd ed., 2000.