Path of Electron in Magnetic Fields | 0.1mT & 1.0mT

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SUMMARY

The discussion focuses on the path of an electron beam influenced by two magnetic fields: the Earth's magnetic field at 0.1 mT and the magnetic field generated by Helmholtz coils at 1.0 mT. The electron beam enters the magnetic field aligned with the Earth's field, while the Helmholtz coils create a perpendicular magnetic field. The resulting trajectory of the electron is not circular, contradicting initial assumptions, indicating the complexity of the interaction between the two magnetic fields.

PREREQUISITES
  • Understanding of electromagnetic theory
  • Familiarity with the Lorentz force law
  • Knowledge of Helmholtz coil configurations
  • Basic principles of electron motion in magnetic fields
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  • Study the Lorentz force and its effects on charged particles
  • Research the configuration and applications of Helmholtz coils
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Physics students, educators, and researchers interested in electromagnetism and the behavior of charged particles in magnetic fields.

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Homework Statement



The original direction of the electron beam as it enters the magnetic field is along the earth’s magnetic field. If the magnitude of the earth’s magnetic field is 0.1 mT and the magnetic field due to the Helmholtz coils is 1.0 mT (perpendicular to the electron beam), the resulting path of the electron can be best described as:

Homework Equations



I have no idea where to begin.

The Attempt at a Solution



I guessed it would be circular but that is wrong.
 
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Uh, where did the Helmholtz coils come into the picture? Is this the question in its entirety?
 

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