Conductance is given by (where, x = thickness, A = heat flow area, K = thermal conductivity.)?
Correct answer: B. KA/x
- A. x/KA
- B. KA/x
- C. K/Ax
- D. A/Kx
Explanation
From the conduction relation Q = KAΔT/x, conductance is Q/ΔT = KA/x. Therefore, increasing area or conductivity increases conductance, while increasing thickness reduces it.
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