Energy imparted to an ion by a magnetic field

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SUMMARY

The discussion centers on the interaction between anions and magnetic fields, clarifying that magnets do not possess negative charges but rather north and south poles. Anions, being negatively charged, will repel from other negative charges, but this repulsion does not occur due to the magnetic field itself. The kinetic energy imparted to a particle in a magnetic field is not derived from Coulomb's law, which calculates force rather than kinetic energy. Instead, the force on a charged particle in motion is determined by its velocity and the magnetic field direction.

PREREQUISITES
  • Understanding of electromagnetic principles
  • Familiarity with Coulomb's law
  • Knowledge of magnetic field properties
  • Basic concepts of kinetic energy and forces
NEXT STEPS
  • Study the Lorentz force equation for charged particles in magnetic fields
  • Explore the relationship between magnetic fields and charged particle motion
  • Learn about the principles of electromagnetic induction
  • Investigate the effects of velocity on the force experienced by charged particles in magnetic fields
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Students and professionals in physics, particularly those studying electromagnetism, as well as educators seeking to clarify concepts related to magnetic fields and charged particles.

Ken H
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Basically my question is: if an anion is placed by the negative poll of a magnet will it push on the particle?
 
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Negative charges repel negative charges, and positive charges repel positive charges.
 
Is there a calculation for the amount of kinetic energy imparted to the particle? Also where does the power come from, is the strength of the magnetic field reduced?
 
Ken H said:
Is there a calculation for the amount of kinetic energy imparted to the particle?
Perhaps Coulomb's law? I'm no master of electromagnetism but it seems like the equation would apply in this case.
 
Coulomb's law would give you the force, though, and not kinetic energy. You would have to use other equations to find the kinetic energy.
 
Ken H said:
Basically my question is: if an anion is placed by the negative poll of a magnet will it push on the particle?
No. The poles of a magnet are not charged.
 
Dale said:
No. The poles of a magnet are not charged.
If it is just a negative pole in general it would still repel the anion though, correct?
 
Magnets don't have negative poles. They have north and south poles.
 
Dale said:
Magnets don't have negative poles. They have north and south poles.
I don't know why I used poles in that. I just meant a negative charge.
 
  • #10
Yes, an anion is negatively charged so it will be repelled from other negative charges. This has nothing to do with a magnet since magnets are typically uncharged.
 
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  • #11
Going back to the original question, if you "place" a charge near the pole of a magnet, and if the word "place" means the charge is not moving when you place it, then, as Dale stated above, there is no force on the charge. If the charge has a velocity, there is a force on the charge depending on the direction of the velocity and the magnetic field.
 
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