I How does the velocity of electrons depend on the voltage across a conductor?

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How exactly the velocity of the electrical conductor's electrons depends on the voltage of the conductor?
How exactly (what is the function?) the velocity of the electrical conductor's electrons depends on the voltage of the conductor?
 
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kuruman said:
See here.

Notice that electron mobilty has the units of diffusivity/Volt. This reminds us of the physics I think.,
 
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