Question about the Microscopic Model of Current

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SUMMARY

The discussion centers on the definitions and implications of uniform and non-uniform conductors in the context of electrical conductivity. A uniform conductor is characterized by consistent conductance throughout its length, typically represented as a cylindrical shape. In contrast, a non-uniform conductor exhibits varying conductance at different points, complicating the analysis and calculations involved in electrical current flow. This distinction is crucial for understanding the microscopic model of current in conductive materials.

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  • Understanding of basic electrical conductivity principles
  • Familiarity with conductor geometries, specifically cylindrical shapes
  • Knowledge of conductance and its variation in materials
  • Basic grasp of the microscopic model of current flow
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Homework Statement
Please see below
Relevant Equations
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Why do they say uniform conductor?
1670823887618.png

Many thanks!
 

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Because a non-uniform conductor would significantly complicate things.
 
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Orodruin said:
Because a non-uniform conductor would significantly complicate things.
Thanks for your reply @Orodruin !

What's a non-uniform conductor? The textbook does not seem to define these 'uniform' or 'non-uniform' conductors.

Am I correct to say that a uniform conductor is cylindrical, while a non-uniform conductor can have any geometry as long as it is open at both ends.

Many thanks,
Callum
 
Orodruin said:
Because a non-uniform conductor would significantly complicate things.
Thanks for your reply @Orodruin ! How would a non-uniform conductor significantly complicate thing?

Many thanks!
 
Callumnc1 said:
What's a non-uniform conductor?
One in which the conductance varies from place to place within it.
 
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haruspex said:
One in which the conductance varies from place to place within it.
Thank you @haruspex !
 

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