What is the Magnitude of Magnetic Force on an Electron in Various Orientations?

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SUMMARY

The discussion focuses on calculating the magnetic force on an electron moving through a magnetic field of 1.2x10^-3 T at a speed of 2.0x10^4 m/s. The magnetic force is determined using the formula F = qvB(sin θ), where θ represents the angle between the velocity and the magnetic field. Key scenarios analyzed include the force when the velocity and magnetic field are perpendicular, at a 45-degree angle, parallel, and exactly opposite. The charge of the electron, approximately -1.6x10^-19 C, is crucial for these calculations.

PREREQUISITES
  • Understanding of the Lorentz force equation F = qvB(sin θ)
  • Knowledge of the charge of an electron (-1.6x10^-19 C)
  • Familiarity with vector components and angles in physics
  • Basic concepts of magnetic fields and their properties
NEXT STEPS
  • Calculate magnetic force for different angles using F = qvB(sin θ)
  • Explore the effects of varying magnetic field strengths on force calculations
  • Investigate the behavior of charged particles in magnetic fields
  • Learn about the applications of magnetic force in technology, such as in particle accelerators
USEFUL FOR

Students studying electromagnetism, physics educators, and anyone interested in the behavior of charged particles in magnetic fields.

kristibella
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Homework Statement


An electron travels at a speed of 2.0x10^4 m/s through a uniform magnetic field whose magnitude is 1.2x10^-3 T. What is the magnitude of the magnetic force on an electron if its velocity and magnetic field:
a. are perpendicular?
b. make an angle of 45 degrees?
c. are parallel?
d. are exactly opposite?

Homework Equations


F = qvB(sin \vartheta

The Attempt at a Solution


I haven't made any attempts because there is no q value...
 
Physics news on Phys.org
It is an electron - look up the charge on an electron.
Soon you will have it memorized!
 
Delphi51 said:
It is an electron - look up the charge on an electron.
Soon you will have it memorized!

...I'm slightly embarrassed because I completely looked over that detail. Thank you for pointing that out.
 

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