Undergrad Understanding q: Lambda & S in the Equation

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The formula q=λ⋅S⋅∪_x relates to heat transfer, where q represents heat flux, λ is the coefficient of thermal conductivity, and S denotes the surface area through which heat is transferred. The discussion highlights the connection between this equation and the heating of a rod, suggesting that it could also involve vacuum permittivity and charge in an electromagnetic context. Participants emphasize the need for clear definitions to avoid speculation about the variables. The conversation references existing literature on thermal conductivity for further clarification. Understanding these terms is crucial for applying the formula accurately in practical scenarios.
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TL;DR
Unknown formula
What is this formula?
q=λ⋅S⋅∪_x
What does s and lambda mean?
 
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Could be potential times vacuum permittivity times surface equals charge (electromagnetic field between to plates).
 
I know that this formula is related to the heating of the rod and the heat flux.
In this case, can λ be the coefficient of thermal conductivity, and s is the surface area through which heat passes?
 
velfr said:
I know that this formula is related to the heating of the rod and the heat flux.
In this case, can λ be the coefficient of thermal conductivity, and s is the surface area through which heat passes?
Sure. But without any description it remains guesswork. Thermal conductivity has plenty of similar formulas, see https://en.wikipedia.org/wiki/Thermal_conductivity
 
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