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Calculate the energy radiated per second...

Calculate the energy radiated per second from the filament of an incandescent lamp at 2000K, if the surface area is `5.0 xx 10^(-5) m^(-2)` and its relative emittance is `0.85` & `sigma = 5.7 xx 10^(-8) W m^(-2) K^(-4)`

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To calculate the energy radiated per second from the filament of an incandescent lamp, we can use Stefan-Boltzmann law, which states that the power radiated by a black body is proportional to the fourth power of its absolute temperature. The formula is given by: \[ P = \varepsilon \sigma A T^4 \] Where: - \( P \) is the power (energy radiated per second), ...
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