If the length and cross-sectional area of a conductor remain unchanged, what is the relationship between the thermal resistance and thermal conductivity of that conductor?
WBBSE
Class X
Physical Science
Thermal phenomena
01 Mark
2026
Thermal resistance, Rt = \frac{\text{L}}{\text{K}\text{A}}
Since the length L and cross-sectional area A remain constant,
Rt ∝ \frac{1}{\text{K}}
Therefore, thermal resistance is inversely proportional to thermal conductivity.
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