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Introduction to the Drude model
The Drude model is a simplistic model for conduction.
It uses classical mechanics, and treats the solid as a fixed array of ions, with electrons not bound. The electrons do not interact with each other, and are scattered by the ions.
When a field is applied, there is a net movement of charge through the lattice, a current flow.
It uses classical mechanics, and treats the solid as a fixed array of ions, with electrons not bound. The electrons do not interact with each other, and are scattered by the ions.
When a field is applied, there is a net movement of charge through the lattice, a current flow.
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Net current flow
Electric field strength
Note: Conventional current flows from positive to negative, but the net electron movement is from negative to positive
Electric field strength
Note: Conventional current flows from positive to negative, but the net electron movement is from negative to positive