Module Specification |
The information contained in this module specification was correct at the time of publication but may be subject to change, either during the session because of unforeseen circumstances, or following review of the module at the end of the session. Queries about the module should be directed to the member of staff with responsibility for the module. |
Title | Electrical Circuits for Engineers | ||
Code | ELEC121 | ||
Coordinator |
Dr PM Bryant Electrical Engineering and Electronics P.M.Bryant@liverpool.ac.uk |
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Year | CATS Level | Semester | CATS Value |
Session 2021-22 | Level 4 FHEQ | First Semester | 7.5 |
Aims |
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To provide students with a basic understanding and analysis of electrical circuits and theory. To introduce students to basic semiconductor devices and circuits involving diodes and transistors. To provide the student with a fundamental knowledge of the principles and construction of DC and AC machines, transformers and linear actuators. |
Pre-requisites before taking this module (other modules and/or general educational/academic requirements): |
Co-requisite modules: |
Learning Outcomes |
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(LO1) Understanding the electrical behaviour of basic passive and active electrical circuit components |
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(LO2) To understand and apply fundamental circuit analysis to solve circuit problems |
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(LO3) To understand how the physical laws of electromagnetism and mechanics apply to practical motors, transformers and actuators. |
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(LO4) Demonstrate a basic understanding of those factors that determine the performance of electrical motors, transformers and simple electro-mechanical actuators |
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(S1) Problem solving skills |
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(S2) Numeracy |
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(S3) Teamwork |
Syllabus |
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Introduction: Overview of the course. Fundamental principles of electrostatics. Components and symbols - passive and active components. Insulators and Dielectrics. Concept of current flow in a circuit and Ohm’s Law. Impedance and Power: Concept of impedance - resistance and reactance. Power dissipation in electrical circuits and energy usage (kilowatt hours). Circuit Theory I: Kirchhoff’s voltage and current laws. Resistors in series and parallel. Current and voltage dividers. Circuit Theory II: Ideal current and voltage sources. Linear circuits. Principle of Superposition. Thevenin equivalent circuits . Semi-conductor devices I - the diode: Small signal and Zener diodes - characteristics and data sheets. Typical diode applications - diode rectifier circuits, voltage regulator circuits. Semi-conductor devices II - the transistor: Transistors (BJT) - types, operating principle, characteristics and data sheets. Transistor modes. Typical tran sistor applications and the CE-amplifier. Electromechanics - Basic principles: Basic terminology and electromagnetic principles. Magnetic fields, Ampere’s law, force on a conductor (the motor effect) and magnetic circuits. Electromagnetic induction: Faraday’s and Lenz’s Law. Concept of self-inductance and back emf. Step response of an RL circuit. Energy stored in a magnetic field. Transducers and solenoid actuators: Definitions, types of transducers. Linear actuators and the principle of energy conversion. Electrical machines: The DC motor: operating principle, EMF and torque production. AC / DC generators - methods of excitation and commutation. Self-excited motor/generator - series and shunt connected machines. Equivalent circuits and power production. Typical machine characteristics. AC machines & transformers: Single phase and multi-phase alternators and output frequency. AC operation of an iron core and transformer action. |
Teaching and Learning Strategies |
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As a result of COVID-19 one or more of the following scenarios will be implemented depending on local conditions: Note - Hydrid delivery with social distancing on campus is not possible due to high student numbers (ie laboratory work). a) Fully on-line delivery and assessment Teaching method 1 - on-line asymchronous lectures Teaching method 2 - Synchronous online laboratory work Teaching method 3 - on-demand tutorials b) Standard on-campus delivery with minimal social distancing Teaching method 2 - Laboratory work Teaching method 3 - on-demand tutorials |
Teaching Schedule |
Lectures | Seminars | Tutorials | Lab Practicals | Fieldwork Placement | Other | TOTAL | |
Study Hours |
22 |
6 |
28 | ||||
Timetable (if known) | |||||||
Private Study | 47 | ||||||
TOTAL HOURS | 75 |
Assessment |
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EXAM | Duration | Timing (Semester) |
% of final mark |
Resit/resubmission opportunity |
Penalty for late submission |
Notes |
(121) Written Exam There is a resit opportunity. Standard UoL penalty applies for late submission. This is an anonymous assessment. Assessment Schedule (When) :Semester 1 Examination Period | 0 | 70 | ||||
(121.3) On-line open book class test. Annonymous marking. Standard UoL penalty applies for late submission. | 50 | 10 | ||||
CONTINUOUS | Duration | Timing (Semester) |
% of final mark |
Resit/resubmission opportunity |
Penalty for late submission |
Notes |
(121.1) Lab 1 - Electrical circuits Standard UoL penalty applies for late submission. This is not an anonymous assessment. Assessment Schedule (When) :As scheduled - Semester 1 | 0 | 10 | ||||
(121.2) Lab 2 - DC Motor Standard UoL penalty applies for late submission. This is not an anonymous assessment. Assessment Schedule (When) :As scheduled - Semester 1 | 0 | 10 |
Reading List |
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Reading lists are managed at readinglists.liverpool.ac.uk. Click here to access the reading lists for this module. |