Question about Drift Velocity in Hall Effect

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SUMMARY

The discussion centers on the Hall Effect, specifically the equation ∆VH=vd·B·W, where vd represents drift velocity. Participants clarify that drift velocity (vd) can be interpreted in both directions due to the movement of electrons and holes. Electrons move opposite to the conventional current, which is defined by the flow of holes. This duality in directionality is essential for understanding the Hall Effect in semiconductor physics.

PREREQUISITES
  • Understanding of the Hall Effect in physics
  • Familiarity with semiconductor theory
  • Knowledge of drift velocity and its implications
  • Basic grasp of electric current and charge carriers (electrons and holes)
NEXT STEPS
  • Study the derivation of the Hall Effect equation in detail
  • Explore the role of charge carriers in semiconductors
  • Learn about the applications of the Hall Effect in sensors
  • Investigate the relationship between drift velocity and electric fields
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Students of physics, electrical engineers, and anyone interested in semiconductor technology and the principles of the Hall Effect.

Vishera
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So my textbook is explaining the hall effect and the following equation was derived:

∆VH=vd·B·W

But if you look at the diagram, it appears that vd is pointing both ways. So which direction is vd pointing in? Or is this because electrons in the opposite direction is the same thing as holes in the correct direction as per traditional current?
 
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Yes, the electrons and holes move in opposite directions.
 

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