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Module Title |
Electrodynamics
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Module Code |
PS412
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School |
School of Physical Sciences
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Online Module Resources
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Level |
4
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Credit Rating |
0
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Pre-requisite |
None
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Co-requisite |
None
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Module Aims
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Application of Maxwells equations: plane electromagnetic waves and wave propagation, waveguides, resonant cavities, optical fibres. Introducing radiation and radiating systems. Introducing the dynamics of relativistic particles and electromagnetic fields.
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Learning Outcomes
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7 Confidence in use of vector algebra and analysis.
7 Confidence in using Maxwells equations in integral and differential form.
7 Confidence in plane electromagnetic waves and wave propagation.
7 Understanding waveguides, resonant cavities and optical fibres.
7 Understanding radiation.
7 Understanding special theory of relativity.
7 Appreciation of Lagrangian formalism for a charged relativistic particle and for the electromagnetic field.
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Indicative Time Allowances
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Hours
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Lectures |
24
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Tutorials |
12
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Laboratories |
0
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Seminars |
0
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Independent Learning Time |
39
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Total |
75
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Placements |
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Assignments |
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NOTE
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Assume that a 0 credit module load represents approximately 75 hours' work, which includes all teaching, in-course assignments, laboratory work or other specialised training and an estimated private learning time associated with the module.
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Indicative Syllabus
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· Revision of vector algebra and analysis. Revision of Maxwell's equations.
· Vector and scalar potentials. Gauge transformations. Gauge choices.
· Poynting's theorem
· Plane waves in a nonconducting medium. Polarisation.
· Waveguides. Propagating modes, energy flow and attenuation.
· Resonant cavities. Power losses and Q factor. Earth and ionosphere as a resonant cavity. Schumann resonances.
· Optical fibres.
· Fields and radiation of a localized oscillating source. Electric dipole fields and radiation. Magnetic dipole and electric quadrupole fields. Centre-fed linear antenna.
· Special theory of relativity: k-calculus
· Lorentz transformations. Mathematical properties of space-time.
· Relativistic momentum and energy of a particle.
· Lagrangian formulation of mechanics: action principle and Euler-Lagrange equations. Hamiltonian.
· Motion in combined, uniform, static electric and magnetic fields.
· Maxwell's energy-momentum tensor.
· Lagrangian for the electromagnetic field.
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| Assessment | | Continuous Assessment | 20% | Examination Weight | 80% |
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Indicative Reading List
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1. John David Jackson: Classical Electrodynamics - 3/e, John Wiley and Sons 1998, ISBN: 0-471-30932-X.
2. David J. Griffiths: Introduction to Electrodynamics 3/e, Prentice Hall 1999, ISBN: 0-13-805326-X.
3. Markus Zahn: Electromagnetic Field Theory: A Problem Solving Approach, Krieger Publishing Company, Florida 1987, ISBN: 0-89874-985-9.
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Programme or List of Programmes
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| AP | BSc in Applied Physics |
| BSSA | Study Abroad (DCU Business School) |
| BSSAO | Study Abroad (DCU Business School) |
| ECSA | Study Abroad (Engineering & Computing) |
| ECSAO | Study Abroad (Engineering & Computing) |
| HMSA | Study Abroad (Humanities & Soc Science) |
| HMSAO | Study Abroad (Humanities & Soc Science) |
| SHSA | Study Abroad (Science & Health) |
| SHSAO | Study Abroad (Science & Health) |
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