# ELECTROMAGNETIC WAVES - 2017/8

Module code: PHY2065

Module provider

Physics

Module Leader

FLORESCU M Dr (Physics)

Number of Credits

15

ECT Credits

7.5

Framework

FHEQ Level 5

JACs code

F341

Module cap (Maximum number of students)

N/A

Module Availability

Semester 2

Overall student workload

Independent Study Hours: 106

Lecture Hours: 34

Tutorial Hours: 10

Assessment pattern

Assessment type | Unit of assessment | Weighting |
---|---|---|

School-timetabled exam/test | MULTIPLE CHOICE CLASS TEST | 30% |

Examination | END OF SEMESTER 1.5HR EXAMINATION | 70% |

Alternative Assessment

N/A

Prerequisites / Co-requisites

Module overview

The module reprises electrostatics (Gauss’ Law) and proceeds to introduce electromagnetic theory through a development of Maxwell’s Equations.

The module introduces concepts associated with the electric and magnetic polarization of materials.

It introduces electromagnetic wave theory and its applications to a range of traditional applications and problems as well as the use of Fourier processing for wave signal analysis.

Module aims

The module aims to present a comprehensive coverage of electromagnetism, electromagnetic waves and the electromagnetic properties of materials. It does this through the development of relevant electromagnetism theory in lectures and though the presentation of traditional applications and problems in lectures and tutorial problems. The module aims to provide further practice in the use of the mathematical tools of vector calculus and partial differential equations learnt in PHY2064.

Learning outcomes

Attributes Developed | |
---|---|

Demonstrate knowledge of the fundamental importance of electromagnetism to many other fields of physics | |

Describe the basic concepts and principles of electromagnetic theory; | |

Set up systems of equations to describe standard problems and systems using of electromagnetism and electromagnetic waves; | |

Demonstrate competence in the analytical and numerical solution of these equations for modeling these standard problems | |

Apply the method of Fourier analysis to process electromagnetic waves. |

Attributes Developed

**C** - Cognitive/analytical

**K** - Subject knowledge

**T** - Transferable skills

**P** - Professional/Practical skills

Module content

Electromagnetism and applications

Reprise of Gauss’ Law (first Maxwell equation) and capacitors leading to Dielectrics, Insulators & Conductors, Electric Polarisation P, Electric Displacement D, Dielectric permittivity, Electric Susceptibility, Dielectric Screening, Boundary conditions for D and E.

Electric current I and current density j, Charge continuity, Magnetic field B, Biot-Savart Law, Gauss' Law for magnetism (second Maxwell equation), Force between two conductors, The Amp, Lorentz force, Hall effect, Ampere's Law.

Electromagnetic Induction, Faraday’s Law (third Maxwell equation), Mutual and self inductance, Energy storage in B-field, Magnetic torque, Magnetic dipoles..

Diamagnets, Paramagnets, Ferromagnetics, Magnetisation M, Magnetic intensity H, Magnetic permeability, Magnetic susceptibility,

Magnetisation current, Magnetic circuits, Reluctance, Hysteresis, Permanent magnets, Boundary conditions for B and H,

Displacement current, fourth Maxwell equation, review of vector analysis,

Electromagnetic Waves and Applications:

The module investigates further the topics of magnetism and electromagnetic waves.

The lectures will go on to combine Maxwell’s equations to investigate electromagnetic wave propagation in vacuum, in materials and the behavior of electromagnetic waves at interfaces:

Electromagnetic Waves, Speed, Refractive index, Attenuation, Skin depth, Uniform Plane waves, Linear Polarisation, Energy density and Power of Waves, Waves at Boundaries - reflection & refraction.

Fresnel's equations, Brewster angle, Total Internal reflection. Transmission Lines

Processing signals images using Fourier analysis and manipulation of Fourier-transformed data.

Methods of Teaching / Learning

33 hours of lectures and 11 hours of class tutorials.

Total student workload is 150hrs, with the remaining hours consisting of independent study

The class test comprises an on-line multiple choice question paper of 20 questions.

The final examination is of 1.5h duration, with 2 questions to be attempted from 3.

Assessment Strategy

Reading list

Reading list for ELECTROMAGNETIC WAVES : http://aspire.surrey.ac.uk/modules/phy2065

Please note that the information detailed within this record is accurate at the time of publishing and may be subject to change. This record contains information for the most up to date version of the programme / module for the 2017/8 academic year.