PHY3054 Electromagnetism II (IS) 2017-18
Prof. R.J. Hicken

Delivery Weeks: T1:01-11
Level: 6 (NQF)
Credits: 15 NICATS / 7.5 ECTS
Enrolment: 4 students (approx)

### Description

This module is an Independent Study version of PHY3051. It is taken by students remote from Exeter, e.g. at Stage 3 of F304, who are therefore unable to attend traditional lectures and tutorials.

This is the second electromagnetism module taken by Physics students. It builds on PHY2021 (Electromagnetism I) and covers fundamental physics that students are capable of directly observing. The dielectric and magnetic properties of solids are introduced and a range of interesting phenomena are covered including the scattering of light the propagation of electromagnetic waves, etc., are important in a wide variety of areas and in many key technologies. The early part of the module is primarily a recap and a reinforcing of the difficult material treated at the end of PHY2021.

### Module Aims

The module aims to develop students' understanding of Maxwell's equations and their applications including some advanced topics. Specifically, students will get to the point where they can handle the fundamentals of fields due to moving charges and also to begin to explore the interaction of electromagnetic radiation with matter.

### Intended Learning Outcomes (ILOs)

A student who has passed this module should be able to:

• Module Specific Skills and Knowledge:
1. describe all the fundamental aspects of electromagnetism;
2. explain and solve problems involving the magnetic properties of materials;
3. explain and solve problems involving the dielectric properties of materials;
4. explain many aspects of the interaction of electromagnetic radiation with matter;
5. calculate the effect of such interactions using appropriate vector mathematics;
6. calculate the fields of moving charges;
7. solve problems requiring application of Maxwell's equations to a variety of situations as outlined in the syllabus below;
• Discipline Specific Skills and Knowledge:
1. use vector analysis to solve problems in science and engineering;
• Personal and Key Transferable / Employment Skills and Knowledge:
1. develop and present a coherent solution to a problem;
2. self-evaluate, check and correct solutions to problems.

### Syllabus Plan

1. Maxwell's Equations
1. The equation of continuity, displacement-current density
2. Maxwell's equations for the electromagnetic field, constitutive equations
2. Dielectric Properties of Matter
1. Classical description of atomic polarisability
2. Dielectrics, paraelectrics and ferroelectrics: general concepts
3. P–E loops
3. Magnetic Properties of Matter
1. Classical model of atomic diamagnetism
2. Diamagnetism, paramagnetism and ferromagnetics: general concepts
3. Langevin (classical) theory of paramagnetism and electron paramagnetism in metals
4. M–B loops, and demagnetisation factors
4. Electromagnetic Waves
1. Electromagnetic waves in free space
2. Plane waves and polarization
3. Plane waves in free space and in isotropic insulating media, dispersion
4. Energy and momentum in electromagnetic waves; Poynting vector
5. Plane waves in conductors and the skin effect, waves in plasmas
5. Transmission Lines and Waveguides
6. Fields Produced by Moving Charges
1. Lienard-Weichert potentials
2. Fields of a uniformly moving point charge
7. The emission of Radiation
1. Radiation from an oscillating dipole
2. Radiation from a set of moving charges
8. Interaction of Radiation with Matter
1. Fresnel's equations and their optical consequences
2. Scattering
3. Metamaterials

### Learning and Teaching

#### Learning Activities and Teaching Methods

Description Study time KIS type
5×6-hour self-study packages 30 hours GIS
4×4-hour problem sets 16 hours GIS
Reading, private study and revision 104 hours GIS

#### Assessment

Weight Form Size When ILOS assessed Feedback
0% Guided self-study 5×6-hour packages Fortnightly 1-10 Self-evaluation
0% 4 × Problems sets (marked by module convener) 4 hours per set Fortnightly 1-10 Written
100% Final Examination 2 hours 30 minutes January 1-10 Mark via MyExeter, collective feedback via ELE and solutions.

### Resources

The following list is offered as an indication of the type & level of information that students are expected to consult. Further guidance will be provided by the Module Instructor(s).

Core text:

Supplementary texts:

ELE:

### Further Information

#### Prior Knowledge Requirements

Pre-requisite Modules Electromagnetism I (PHY2021) none

#### Re-assessment

Re-assessment is not available except when required by referral or deferral.

Original form of assessment Form of re-assessment ILOs re-assessed Time scale for re-assessment
Whole module Written examination (100%) 1-10 August/September assessment period

Notes: See Physics Assessment Conventions.

#### KIS Data Summary

Learning activities and teaching methods
SLT - scheduled learning & teaching activities 0 hrs
GIS - guided independent study 150 hrs
PLS - placement/study abroad 0 hrs
Total 150 hrs
Summative assessment
Coursework 0%
Written exams 100%
Practical exams 0%
Total 100%

#### Miscellaneous

 IoP Accreditation Checklist EM-04 Maxwell's equations and plane electromagnetic wave solution; Poynting vector SS-07 Magnetic properties of matter EM-06 Polarisation of waves and behaviour at plane interfaces Availability unrestricted Distance learning YES (see PHY3051) Keywords Physics; Maxwell's equations; Electromagnetic fields; Waves; Radiation; Properties of matter. Created 01-Oct-10 Revised 23-Jul-16