Solid State Physics | electrons | thermal conduction

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Homework Help Overview

The discussion revolves around the concept of thermal conduction in solid state physics, specifically focusing on the role of electrons in carrying energy without contributing to a net current. Participants are exploring the definitions and implications of these terms within the context of thermal conduction.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants are questioning the meaning of "thermal conduction" and its relation to electron motion. There is a focus on understanding what constitutes a "net current" and how it differs from simply carrying current. Some are attempting to clarify the terminology used in the context of energy transfer by electrons.

Discussion Status

The discussion is ongoing, with participants raising foundational questions about the concepts involved. Some guidance has been offered regarding the definitions of thermal conduction and net current, but there is no explicit consensus on the interpretations yet.

Contextual Notes

There are indications that participants are grappling with the definitions and implications of terms like "net current" and "net energy," suggesting a need for further clarification on these concepts within the framework of thermal conduction.

heycoa
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Homework Statement


Explain why electrons carry a net energy but not a net current in the case of thermal conduction.


Homework Equations


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The Attempt at a Solution


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Please help me understand this!
 
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Focus on the basics to start with:
What does "thermal conduction" mean in this case?
What would a "net current" involve?
 
I believe thermal conduction means the transition of thermal heat via the electron gas, and net current would be the obvious: dI/dt
 
##dI/dt## would be the rate of change of net current. A net current would be ##I=dQ/dt## But what does that mean in terms of the motion of electrons? Why "net" current - why not just "current"?

What does "thermal conduction" mean in terms of the motion of electrons?
Why "net" energy? Why not just say they "carry energy"?
 

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