The cylindrical filament in a light bulb has a diameter of 0.050 mm,an emissivity of 1.0,and a temperature of 3000°C.How long should the filament be in order to radiate 60 W of power? (σ = 5.67 × 10^-8 W/m² ∙ K⁴) A)11 cm B)9.4 cm C)8.6 cm D)7.2 cm E)5.9 cm

Question

Quizplus · Accepted Answer

The Answer of The cylindrical filament in a light bulb has a diameter of 0.050 mm,an emissivity of 1.0,and a temperature of 3000°C.How long should the filament be in order to radiate 60 W of power? (σ = 5.67 × 10^-8 W/m² ∙ K⁴) A)11 cm B)9.4 cm C)8.6 cm D)7.2 cm E)5.9 cm

The Cylindrical Filament in a Light Bulb Has a Diameter