(a) Given a mean free path 0 4 nm and a mean speed vav 1 17 105 m s for the current flow in copper at a temperature of 300 K, calculate the classical value for the resistivity of copper (b) The classical model suggests that the mean free path is temperature independent and that vav depends on tempe...

(a) Given a mean free path = 0.4 nm and a mean speed vav = 1.17...

Question:

(a) Given a mean free path λ = 0.4 nm and a mean speed vav = 1.17 × 105 m/s for the current flow in copper at a temperature of 300 K, calculate the classical value for the resistivity ρ of copper.

(b) The classical model suggests that the mean free path is temperature independent and that vav depends on temperature. From this model, what would ρ be at 100 K?