CODE 
PHY3120 

TITLE 
Electromagnetism 

LEVEL 
03  Years 2, 3, 4 in Modular Undergraduate Course 

ECTS CREDITS 
6 

DEPARTMENT 
Physics 

DESCRIPTION 
Prerequisite PHY1140 and PHY1160
Mathematical background: Gradient; divergence; curl; Laplacian operator; Divergence Theorem; Stokes' Theorem
Electrostatics: Coulomb's law; electric field of a charge distribution; Gauss' law; divergence of E
Steady currents  magnetostatics: Lorentz force; BiotSavart law; divergence of B; Ampére's law
Timevarying fields: Faraday's induction law; curl of E; vacuum displacement current; curl of B
Electromagnetic waves in free space: Maxwell's equations in free space; wave equations for E and B; plane wave solutions for the wave equation; polarization
Electric fields in insulators: Electric dipole moment; dielectric polarization; dielectrics in nonuniform electric fields; polarization charge density and surface charge density; electric displacement vector D; electric susceptibility
Magnetic fields in matter: Magnetic dipole moment; magnetisation vector M; magnetic intensity vector H; magnetic susceptibility
Electromagnetic fields in linear, isotropic and homogeneous media: Maxwell's equations in LIH media; wave equation for LIH media; conducting media; skin depth; E and H vectors in lossy media; complex permittivity and permeability
Electromagnetic field energy: Energy density in electromagnetic fields; energy flow; Poynting's Theorem; Poynting vector in free space and LIH media
Boundary conditions at the interface between two media for the field vectors E, B, D and H
Applications of the boundary conditions: Reflection and refraction of plane waves at the interface between dielectric media; Fresnel equations; Brewster angle; reflection and refraction at the surface of a good conductor
Propagation of electromagnetic waves in waveguides: Parallel wire transmission lines; line equations; characteristic impedance; coaxial cables; rectangular waveguides; TEnm and TMnm propagation modes in rectangular waveguides; cutoff frequency
Radiation theory: The scalar and vector potentials; ?(r) and A(r); Lorentz Gauge; Maxwell's equations in terms of ?(r) and A(r); antenna theory  solutions for ?(r) and A(r); radiation by timevarying currents  Hertzian dipole; far fields; halfwave antenna; radiation resistance; loop antenna
Recommended Texts:
 I S Grant and W R Philips, Electromagnetism, John Wiley and Sons  W N Cottingham and D A Greenwood, Electricity and Magnetism, Cambridge University Press  P Lorrain and D Corson, Electromagnetic Fields and Waves, W H Freeman and Co  S Ramo, J R Whinery and T vanDuzer, Fields and Waves in Communication Electronics, John Wiley and Sons  R E DuBroff, S V Marshall and G G Skitek, Electromagnetic Concepts and Applications, Prentice Hall  D H Staelin, A W Morgenthaler and J A Kong, Electromagnetic Waves, Prentice Hall  J D Kraus, Electromagnetics, McGrawHill  F W Ulaby, Fundamentals of Applied Electromagnetics, Prentice Hall  C A Balanis, Advanced Engineering Electromagnetics, John Wiley and Sons  C J Camilleri, Vector Analysis, Malta University Press


STUDYUNIT TYPE 
Lecture 

METHOD OF ASSESSMENT 
Assessment Component/s 
Resit Availability 
Weighting 
Examination (3 Hours)

Yes 
100% 


LECTURER/S 
Charles V. Sammut


The University makes every effort to ensure that the published Courses Plans, Programmes of Study and StudyUnit information are complete and uptodate at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints.
Units not attracting a sufficient number of registrations may be withdrawn without notice.
It should be noted that all the information in the studyunit description above applies to the academic year 2017/8, if studyunit is available during this academic year, and may be subject to change in subsequent years.

24 November 2017
https://www.um.edu.mt/science/studyunit