# Electrical Circuits

## Module summary

Module code: ELEC1034
Level: 5
Credits: 15
School: Engineering and Science
Department: Engineering
Module Coordinator(s): Zahra Sangelaji

## Specification

### Aims

Electrical circuits are part of the fabric of modern technology. This course is designed to equip students with foundational knowledge of electrical engineering, appreciation of electrical engineering principles and techniques for solving circuit problems and application of techniques to practical problems.

### Learning outcomes

On successful completion of this course a student will be able to:

1 Explain the fundamentals of electrical DC and AC circuits with particular applications to electrical engineering;
2 Analyse simple electrical DC and AC circuits;
3 Determine equivalent circuits for networks through network theorems;
4 Formulate and solve transient circuit problems;
5 Demonstrate an understanding of single and three phase power circuits, unit notation and symmetrical components;
6 Calculate the real, reactive, and apparent power in AC circuit including instantaneous power, power factor, and power triangle;
7 Investigate the performance of circuits and devices using basic laboratory equipment and circuit simulator;

### Indicative content

• DC circuits: series and parallel and mixed resistive circuits including voltage and current dividers. Voltages, currents and power in the resistive circuits. Applications of Ohm's law and Kirchhoff’s laws in the solutions of resistive circuits. Circuit analysis using the node and mesh methods. Network theorems: Superposition theorem, Thevenin and Norton Equivalents, maximum power.
• Transient in dc circuits: energy storage elements, Charging and discharging, Transient analysis of simple RC, RL and RLC circuits, time constant, Steady state analysis, Faraday’s law of induction.
• AC circuits: Response of basic elements, Inductive and capacitive reactance. Inductive and capacitive circuits. Complex impedance, current and voltages in an ac series circuit. Phasor representation of an ac series circuit,
• Power in an ac circuit: Single and three phase circuits, apparent power, reactive power, active power, power factor, power triangle, phase and line quantities, per unit notation, Power generation and distribution.

### Teaching and learning activity

Teaching will be through one hour formal lectures in combination with several active learning techniques including: in class collaborative activities, ungraded quizzes with the extensive use of PRS system. Tutorials will provide a good opportunity to enhance understanding of the theoretical aspects. Practical supervised laboratory sessions and workshops will further enhance understanding of the subject with the aid of the specialised software. Problem based and open ended experiments will also be used to assess students understanding.

Proposed laboratory activities:
- Modelling of an electrical power system using MATLAB/Simulink.
- Modelling of power system using Cobalt Switchboard Simulator.

The Laboratory activities comprise of multi-week problem based projects.

### Assessment

Students are required to pass all components to pass the course.

Methods of SUMMATIVE Assessment: Practicals
Nature of FORMATIVE assessment supporting student learning: Tutorial, Quiz, Self-assessment, with the use of PRS throughout the course
Outcome(s) assessed by summative assessment (Please use the numbers above to refer to these): 3, 4, 6, 7.