An electric current through a tungsten filament maintains its temperature at 2800 K. Assume the tungsten filament behaves as an ideal radiator at that temperature. If the radiating area of the filament is 2.0 × 10^-6 m², at what rate does it radiate energy? (σ = 5.670 × 10^-8 W/m² ∙ K⁴, Wien displacement law constant is 2.90 × 10^-3 m ∙ K) A) 5.5 W B) 7.0 W C) 8.5 W D) 10 W E) 11.5 W

Question

Quizplus · Accepted Answer

The Answer of An electric current through a tungsten filament maintains its temperature at 2800 K. Assume the tungsten filament behaves as an ideal radiator at that temperature. If the radiating area of the filament is 2.0 × 10^-6 m², at what rate does it radiate energy? (σ = 5.670 × 10^-8 W/m² ∙ K⁴, Wien displacement law constant is 2.90 × 10^-3 m ∙ K) A) 5.5 W B) 7.0 W C) 8.5 W D) 10 W E) 11.5 W

An Electric Current Through a Tungsten Filament Maintains Its Temperature