In a Pure Metal the Collisions That Are Characterized by the Mean

question 35

Multiple Choice

In a pure metal the collisions that are characterized by the mean free time $\tau$ in the expression for the resistivity are chiefly between:

• A) electrons and other electrons
• B) electrons with energy about equal to the Fermi energy and atoms
• C) all electrons and atoms
• D) electrons with energy much less than the Fermi energy and atoms
• E) atoms and other atoms

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