Negative pole of magnet deflects electrons?

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SUMMARY

The discussion centers on the behavior of electrons in magnetic fields, specifically how the negative pole of a magnet deflects electron beams in cathode ray tubes. It is established that moving electrical charges, such as electrons, create magnetic fields that interact with external magnetic fields. The force exerted on the electron beam is always perpendicular to both the magnetic field and the direction of motion, resulting in the beam being bent into a circular path. The demonstration involved Helmholtz coils, which are used to create uniform magnetic fields for such experiments.

PREREQUISITES
  • Understanding of basic electromagnetism principles
  • Familiarity with cathode ray tube technology
  • Knowledge of magnetic field interactions with charged particles
  • Concept of Lorentz force and its application
NEXT STEPS
  • Research the Lorentz force law and its implications for charged particles in magnetic fields
  • Explore the design and function of Helmholtz coils in creating uniform magnetic fields
  • Study the principles of cathode ray tube operation and applications
  • Investigate the behavior of charged particles in various magnetic field configurations
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Physics students, educators, and anyone interested in the principles of electromagnetism and the behavior of charged particles in magnetic fields.

cnidocyte
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I watched a video there about cathode ray tubes and the guy in the video demonstrated the negative pole of a magnet deflecting the beam and the positive pole attracting the beam. I know that moving electrical charges create magnetic fields but I didn't know their magnetic fields always deflect negative magnetic poles. I'm having trouble visualizing this. Doesn't a moving electron have a positive and negative magnetic pole just like any other particle?
 
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Poles of magnets neither attract nor repel beams of moving electric charges. Magnets do deflect beams, but in a direction perpendicular to the magnetic field. The force on the beam is always perpendicular to the direction of motion, so the beam is bent into a circle.

So the force on the beam is perpendicular to both the magnetic field and the direction of motion.

I attach a thumbnail photo of an electron beam in a vacuum tube being bent into a circle by a pair of Helmholtz (magnetic solenoid) coils.

Bob S
 

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