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Lifetime and temperature of incandescent lamps

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Published under licence by IOP Publishing Ltd
, , Citation Dulli C Agrawal and V Jayaram Menon 1998 Phys. Educ. 33 55 DOI 10.1088/0031-9120/33/1/023

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1 Banaras Hindu University, Varanasi, India

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0031-9120/33/1/55

Abstract

Assuming that during the rated lifetime of a bulb roughly half of the radius of the filament evaporates, we can estimate the mean rate of evaporation. The filament's operating temperature can then be deduced from the Catalogue using linear interpolation. The probable reasons for the bulb's failure are also mentioned.

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10.1088/0031-9120/33/1/023