course: Electromagnetic Fields
- number:
- 141367
- teaching methods:
- lecture with tutorials
- media:
- Moodle, computer based presentation, black board and chalk
- responsible person:
- Prof. Dr. Ralf Peter Brinkmann
- lecturer:
- Dr. Denis Eremin (ETIT)
- language:
- english
- HWS:
- 3
- CP:
- 5
- offered in:
- summer term
dates in summer term
- start: Monday the 12.04.2021
- lecture Mondays: from 12:15 to 13.45 o'clock
- tutorial Wednesdays: from 12:15 to 13.00 o'clock
Exam
Die Angaben zu den Prüfungsmodalitäten (im WiSe 2020/2021 | SoSe 2021) erfolgen vorbehaltlich der aktuellen Situation. Notwendige Änderungen aufgrund universitärer Vorgaben werden zeitnah bekanntgegeben.
Date according to prior agreement with lecturer.
Form of exam: | oral |
Registration for exam: | FlexNow |
Duration: | 30min |
goals
The students learn the theory of electromagnetic fields and waves and are able to apply the techniques to related problems in engineering and physics.
content
- Helmholtz theorem
2. General overview of Maxwell's equations. Different approximations: electrostatics, magnetostatics, Darwin
- Electrostatics: Coulomb's law, Gauss's law
- Green's function in electrostatics
- Magnetostatics: Bio-Savart's law, Ampere's law
- Faraday's law
- Displacement current, Maxwell's equations, vector and scalar potentials
- Gauge transformations, Lorenz gauge, Coulomb gauge
- Energy conservation, Poynting theorem
- Conservation of linear momentum
- Plane waves in nonconducting media
- Properties of electromagnetic waves, polarization
- Propagation of a wave's packet, phase and group velocity
- Cylindrical waveguides and cavities
- TM, TE, and TEM waves
- Waveguide modes
- Resonant cavities
- Green's function for a time-dependent problem in free space
- Fields and radiation of localized oscillating sources
requirements
None
recommended knowledge
Fundamental knowledge of electromagnetics, partial differential equations, and vector calculus would be helpful.
materials
script:
- Handwritten Notes 01
- Handwritten Notes 02
- Handwritten Notes 03
- Handwritten Notes 04
- Handwritten Notes 05
- Handwritten Notes 06
- Handwritten Notes 07
- Handwritten Notes 08
- Handwritten Notes 09
- Handwritten Notes 10
- Handwritten Notes 11
- Handwritten Notes 12
- Handwritten Notes 13
- Handwritten Notes 14
- Handwritten Notes 15
- Handwritten Notes 16
- Handwritten Notes 17
- Handwritten Notes 18
literature
- Jackson, John David "Classical Electrodynamics", Wiley & Sons, 1998
- Griffiths, D.J. "Introduction to Electrodynamics", Prentice Hall, 1999
- Zangwill, A. "Modern Electrodynamics", Cambridge University Press, 2013
- Kendall, P.C. "Vector Analysis and Cartesian Tensors", CRC Press, 1992
miscellaneous
SOMMERSEMESTER 2021
Der Kurs beginnt am 12. April. Im Moment müssen wir uns alle der Herausforderung des Coronavirus stellen.
https://moodle.ruhr-uni-bochum.de/m/course/view.php?id=27578
The course will start on the 12th of April. At the moment we all have to face the challenge posed by the corona-virus.
At the beginning of each week lectures will be uploaded and each week on Wednesdays at 12:00 I will wait for those who have any questions regarding the lectures or other questions relevant to the course on Zoom, https://ruhr-uni-bochum.zoom.us/j/99308760452?pwd=MVgyNUxHeUVtUDVhVzgzeURhbG9QQT09
The moodle course for this class can be found on https://moodle.ruhr-uni-bochum.de/m/course/view.php?id=27578