The Coiling Factor in the Tungsten Filament Lamps

dc.creator	D. C. Agrawal
dc.date	2011-06-01T00:00:00Z
dc.date.accessioned	2015-07-20T22:08:38Z
dc.date.available	2015-07-20T22:08:38Z
dc.identifier	1870-9095
dc.identifier	https://doaj.org/article/eea42c218d21425c99cc9994c4fcf2a6
dc.identifier.uri	http://evidence.thinkportal.org/handle/123456789/12170
dc.description	Papers on tungsten lamps appearing in the pedagogic journals have been essentially assuming straight wire filaments however, in actual practice it is either single coiled or double coiled. This paper reports for the first time the D.D. Van Hover expression for the value of resistance of a coil and Milan R. Vukcevich theory based on coiled-ribbon filament for the radiation energy value from a coil. These expressions are applied to the coiled-wire filaments lamps of 6, 10, 25, 40, 60, 100, 200, 300, and 500 watts to estimate the values of pitch ratio, mandrel ratio and the temperature of the corresponding coil. For simplicity only the single coiled filament lamp cases are considered.
dc.language	English
dc.language	Spanish
dc.language	Portuguese
dc.publisher	Instituto Politécnico Nacional, Latin American Physics Education Network
dc.relation	http://www.lajpe.org/june11/21_LAJPE_535_Agrawal_Plantilla_preprint_corr_f.pdf
dc.relation	https://doaj.org/toc/1870-9095
dc.source	Latin-American Journal of Physics Education, Vol 5, Iss 2, Pp 443-449 (2011)
dc.subject	Tungsten filament lamps
dc.subject	6-500 watts
dc.subject	coiling factors
dc.subject	pitch ratio
dc.subject	mandrel ratio
dc.subject	temperature of coiled filament.
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	DOAJ:Education
dc.subject	DOAJ:Social Sciences
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	DOAJ:Education
dc.subject	DOAJ:Social Sciences
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.title	The Coiling Factor in the Tungsten Filament Lamps
dc.type	article