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An electron moving in a wire collides repeatedly with
Chapter 15, Problem 14E(choose chapter or problem)
An electron moving in a wire collides repeatedly with atoms and travels an average distance between collisions called the ?mean free path?. If the mean free path is less in some metals, what can you say about the resistance of these metals? For a given conductor, what can be done to lengthen the mean free path?
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QUESTION:
An electron moving in a wire collides repeatedly with atoms and travels an average distance between collisions called the ?mean free path?. If the mean free path is less in some metals, what can you say about the resistance of these metals? For a given conductor, what can be done to lengthen the mean free path?
ANSWER:Step 1 of 2 The resistivity is inversely proportional to the mean free path If the path is less, the number of frequent collisions with the atoms increases. Hen