Suppose a conductor has length and cross-sectional area
PHYSICS · Multi-part · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
Suppose a conductor has length l and cross-sectional area A. One end is at temperature T1 and the other is at a lower temperature T2. The ability of its material to allow heat conduction is called its thermal conductivity, k.
(1) Suggest some factors, specific to the material of the conductor, that might affect its thermal conductivity.
(2) The rate at which thermal energy is transferred through the conductor is ΔtΔQ. Suggest how ΔtΔQ depends on l.