Proton Speed in Constant Magnetic Field

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SUMMARY

A proton traveling at an initial speed of 1.5x106 m/s enters a constant magnetic field of 1.5T at a 30-degree angle. The discussion confirms that while the proton's path will change due to the magnetic field, its speed remains constant over time. After 4 seconds in the magnetic field, the proton's speed continues to be 1.5x106 m/s, illustrating the principle that magnetic fields do not alter the speed of charged particles, only their direction.

PREREQUISITES
  • Understanding of classical electromagnetism
  • Familiarity with the Lorentz force equation
  • Knowledge of vector components in physics
  • Basic principles of charged particle motion in magnetic fields
NEXT STEPS
  • Study the Lorentz force and its impact on charged particles
  • Learn about the motion of charged particles in uniform magnetic fields
  • Explore the concept of cyclotron motion and its applications
  • Investigate the effects of magnetic fields on different charged particles
USEFUL FOR

Physics students, educators, and professionals in fields related to electromagnetism and particle physics will benefit from this discussion.

jan2905
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Traveling at an initial speed of 1.5x10^6m/s, a proton enters a region of constant magnetic field of magnitude 1.5T. If the proton's initial velocity vector makes an angle of 30 deg with the magnetic field, what is the proton's speed 4s after entering the magnetic field?



Not sure what equations to use.



I said that the speed did not change. Sure the path did...
 
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You're correct, the speed does not change in a magnetic field.
 

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