The total emissivity power is defined as the total amount of radiation emitted by a black body per unit

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  1. Temperature
  2. Thickness
  3. Area
  4. Time

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Concept:

Total emissive power

  • Total emissive power is defined as the total amount of radiation emitted by a body per unit time.
  • Emissivity is defined as the ratio of the total emissive power of a body to the total emissive power of a black body. It is denoted by ϵ.
  • ϵ = E/Eb
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