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


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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.

20 September 2017
http://www.um.edu.mt/science/studyunit