The ratio $$\frac{{\text{k}}}{{\sigma {\text{T}}}}$$ (where k is the thermal conductivity, σ is the electrical conductivity and T is the temperature) for metals
A. is strongly dependent on the number density of the charge carriers
B. is independent of the temperature T
C. varies widely from one metal to another
D. is approximately independent of the particular metal
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Materials And Components
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