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Flickering lamps

  • Abstract Many processes in electromagnetism vary with time. Some of them are well known, in particular those related to line frequencies of 50 Hz or 60 Hz such as fluctuating light output of discharge and incandescent lamps. The flickers of discharge and incandescent lamps have quite different physical principles involved, which are investigated experimentally using high-speed cameras and theoretically using simplified models. The topic is related to other phenomena such as the transientAbstract Many processes in electromagnetism vary with time. Some of them are well known, in particular those related to line frequencies of 50 Hz or 60 Hz such as fluctuating light output of discharge and incandescent lamps. The flickers of discharge and incandescent lamps have quite different physical principles involved, which are investigated experimentally using high-speed cameras and theoretically using simplified models. The topic is related to other phenomena such as the transient behaviour of phosphor layers covering the screen of oscilloscopes and the time-varying Lorentz force acting on the filament of light bulbs. All studies are well suited for teaching selected aspects of electromagnetism and light at undergraduate level at university.show moreshow less

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Metadaten
Author:Michael VollmerGND, Klaus-Peter MöllmannGND
DOI:https://doi.org/10.1088/0143-0807/36/3/035027
Parent Title (English):European Journal of Physics 36 (2015) 3
Document Type:Article
Language:English
Year of Publishing:2015
Date of Publication (online):2015/12/15
Release Date:2015/12/15
First Page:035027
Institutes:Fachbereich Technik
Dewey Decimal Classification:Naturwissenschaften und Mathematik / Physik / Physik
University Bibliography:Hochschulbibliografie
Licence (German):Creative Commons - Namensnennung, Nicht kommerziell, Keine Bearbeitung
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