A. To understand the formula for power radiated in the form of electromagnetic e

Question

A. To understand the formula for power radiated in the form of electromagnetic energy by an object at nonzero temperature. This formula applies to _______________. any object of total surface area A, Kelvin temperature T, and emissivity e any object of cross-sectional area A, Kelvin temperature T, and emissivity e any object of total surface area A, Kelvin temperature T, and emissivity sigma any object of cross-sectional area A, Kelvin temperature T, and emissivity sigma B. If you wanted to find the area of the hot filament in a light bulb, you would have to know the temperature (determinable from the color of the light), the power input, the Stefan-Boltzmann constant, and what property of the filament? a. thermal radiation b.emissivity c.length

Explanation / Answer

ideal black bodies b.emmissivity

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