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Modules

Modules

EEE1001 : Fields, Materials and Devices

Semesters
Semester 2 Credit Value: 20
ECTS Credits: 10.0

Aims

To present the basic materials of electrical and electronic devices
To give an understanding of the non-idealities of these materials
To give an understanding of the application of these materials to devices and machines.
To present the various forms semiconductor materials
To give an understanding of electromagnetic fields
To enable the student to understand simple electrical machines and device

Outline Of Syllabus

Introduction

The effects produced by static charge, moving charge and accelerating charge; capacitance, resistance and inductance; current, voltage

Electrostatics and Materials
Origin of charge and forces between charges:- electric field, potential energy, capacitance, dielectrics, electric flux, dispersion and circulation
Charge within an atom:- energy levels and their occupation with electrons
Charge within a solid(multiatom):- energy bands and their occupation, forbidden energy gap, difference between metals, semiconductors and insulators
Changing the distribution of charge in the energy bands:- effect of temperature, electrons and holes, doping as a means of increasing the electrons and holes in a semiconductor
Electrostatic applications – Photocopier, electrostatic loudspeaker, CRT

Current Flow in Materials
Current flow due to an electric field in metals and semiconductors:- electric field currents, resistivity, conductivity
Current flow due to diffusion in non-uniform doped semiconductors:- diffusion currents, built-in electric field
PN junctions:- barrier height, depletion layer and current flow under zero bias, forward bias and reverse bias; explanation of the diode equation, diode capacitance
Light emitting diodes and photodiodes

Magnetic Fields and their Applications
Fields
The concept of a magnetic field, dispersion and circulation, circuit laws, flow concepts, flux, magnetic vector potential, inductance, flux density, mmf, mmf gradient.
Current flow in circuits: the effects produced by accelerating charge; inductance
Coupling between moving charges, mutual inductance, force, energy.
Electromotive force, circulation, circuit laws, energy, Ferromagnetism, hysteresis
Choice between electric and magnetic fields. Forces on magnetised iron surfaces; forces of attraction and alignment; force on current carrying conductors.

Applications
Principles and construction of loudspeakers.
Use of forces in various electrical machine types, with example state of the art applications.
Principles of d.c. machines; equivalent circuits, operating characteristics, connections and example applications.
Basic construction of single phase transformer; classical derivation of electrical equivalent circuits; auto transformers; high frequency pulse transformers.

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Guided Independent StudyAssessment preparation and completion240:156:00Revision for mid-semester test
Guided Independent StudyAssessment preparation and completion11:001:00Mid-semester test
Guided Independent StudyAssessment preparation and completion480:3024:00Revision for final exam
Guided Independent StudyAssessment preparation and completion13:003:00Final exam
Scheduled Learning And Teaching ActivitiesLecture121:0012:00Tutorial
Scheduled Learning And Teaching ActivitiesLecture481:0048:00N/A
Guided Independent StudyAssessment preparation and completion15:005:00Lab report
Scheduled Learning And Teaching ActivitiesPractical13:003:00N/A
Guided Independent StudyIndependent study198:0098:00Reviewing lecture notes inc. ReCap; Background reading; Tutorial sheet and past paper questions.
Total200:00
Jointly Taught With
Code Title
PHY1023Introductory Electromagnetism and Materials
Teaching Rationale And Relationship

Lectures provide core material and guidance for further reading, problem solving practice is provided through tutorials. Work is further re-enforced through laboratory sessions.

Assessment Methods

The format of resits will be determined by the Board of Examiners

Exams
Description Length Semester When Set Percentage Comment
Written Examination1802A70N/A
Written Examination602M10Mid-semester test
Other Assessment
Description Semester When Set Percentage Comment
Practical/lab report2M202000 words
Assessment Rationale And Relationship

The examination provides the opportunity for the student to demonstrate their understanding of the course material. The problem solving aspects of the assessment enable students to demonstrate that they are able to apply this understanding and their analysis and synthesis skills to novel situations. Laboratories provide the opportunity to assess practical skills and the application of theoretical knowledge.

Reading Lists

Timetable