Help with understanding of magnetic fields related to moving electrons

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SUMMARY

The discussion centers on the generation of magnetic fields around current-carrying wires, specifically referencing Ampere's Law, which states that a stationary current produces a magnetic field described by the equation ∇ × B = μ₀j. Participants explore the analogy between moving electrons in a wire and moving plasma, questioning whether similar magnetic fields would arise in both scenarios. The consensus confirms that moving plasma would indeed generate a magnetic field analogous to that of a current-carrying wire.

PREREQUISITES
  • Understanding of Ampere's Law in magnetostatics
  • Knowledge of magnetic field concepts
  • Familiarity with the behavior of charged particles
  • Basic principles of plasma physics
NEXT STEPS
  • Study the applications of Ampere's Law in various electromagnetic scenarios
  • Research the properties of plasma and its behavior in magnetic fields
  • Explore the relationship between electric currents and magnetic fields in greater detail
  • Investigate the implications of moving charged particles in different mediums
USEFUL FOR

Students and professionals in physics, electrical engineering, and plasma research who seek to deepen their understanding of electromagnetic fields and their applications in various contexts.

Krejuski
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Hello all,

I am in need of understanding of magnetic fields. More specifically i was wondering exactly why there is a magnetic field around a wire with current moving through it. Where i am going with this is.. if i had plasma contained, and i managed to get it moving in the container, would there be a magnetic field around the moving plasma similar to a moving current?
 
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I'm not sure in what sense you are using the word "why". The presence of the stationary current along the wire must produce a non-vanishing ##B## field solving Ampere's Law for magnetostatics ##\nabla \times B = \mu_{0}j##.
 

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