Calculate the pitch of eletron cyclotron in b field.

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SUMMARY

The discussion focuses on calculating the pitch of an electron's helical path in a uniform 26.0 mT magnetic field. The electron enters the field with a speed of 5.50E6 m/s at a 30-degree angle above the xy-plane, resulting in a radius of 1.04 mm. The pitch is defined as the distance between successive loops of the helix, which can be calculated using the formula p = r * tan(30). The time for one complete loop corresponds to the period of the electron's motion in the z-direction.

PREREQUISITES
  • Understanding of electromagnetic theory, specifically the motion of charged particles in magnetic fields.
  • Familiarity with the concept of helical motion and its geometric properties.
  • Knowledge of trigonometric functions, particularly tangent.
  • Basic understanding of periodic motion and its relation to velocity and distance.
NEXT STEPS
  • Calculate the period of the electron's motion in the magnetic field.
  • Explore the relationship between velocity, radius, and pitch in helical motion.
  • Learn about the Lorentz force and its effect on charged particles in magnetic fields.
  • Investigate applications of cyclotron motion in physics and engineering.
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Students studying electromagnetism, physics educators, and anyone interested in the dynamics of charged particles in magnetic fields.

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Homework Statement



The uniform 26.0 mT magnetic field in the figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 5.50E6 and at an angle of
30 deg. above the xy-plane.

The problem defines the pitch to be the distance between the sucessive loops of the helix.

radius = 1.04 mm


Homework Equations





The Attempt at a Solution



I thought i could slove for the pitch by solving p= r*tan(30), i don't know, i have no experience solving this kind of problem.
 
Last edited:
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I think you will get more response in the physics section than in the mathematics section so I am moving this post.
 
The electron is moving with constant speed allong the z-direction. Do you know why?
Between two sucessive loops the time is one period. Thus the pitch is the distance traveled by the electron in one period at z-direction.

Can you calculated it, now?
 

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