The temperature of the filament of a 100 W electric lamp is 2727 °C. The emissivity of the surface of the filament is 0.086 and its radius is 0.5 mm. Find the length of the filament. g = 5.7 x 108 S.I. units.
The temperature of the filament of a 100 W electric lamp is 2727 °C. The emissivity of the surface of the filament is 0.086 and its radius is 0.5 mm. Find the length of the filament. g = 5.7 x 108 S.I. units.
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Transcribed Image Text:The temperature of the filament of a 100 W electric lamp is 2727 °C. The emissvity of the
surface of the filament is 0.086 and its radius is 0.5 mm. Find the length of the filament.
O = 5.7 x 108 S.I. units.
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