How Do You Calculate Bx in a Magnetic Field Problem Involving an Electron?

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SUMMARY

The discussion focuses on calculating the magnetic field component Bx in a problem involving an electron moving through a uniform magnetic field represented by B = Bxi + (3.0Bx)j. The electron's velocity is given as v = (2.0i + 4.0j) m/s, and the magnetic force acting on it is (6.4 x 10-19 N)k. The solution involves applying the equation for magnetic force, Fb = |q|v x B, and utilizing matrix methods to solve for Bx definitively.

PREREQUISITES
  • Understanding of vector cross products in physics
  • Familiarity with magnetic force equations
  • Basic knowledge of electron dynamics in magnetic fields
  • Proficiency in matrix operations for solving equations
NEXT STEPS
  • Study the vector cross product and its applications in electromagnetism
  • Learn about the Lorentz force law and its implications for charged particles
  • Explore matrix algebra techniques for solving systems of equations
  • Investigate the behavior of electrons in varying magnetic field configurations
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone involved in electromagnetism or particle dynamics, particularly those working with magnetic fields and forces on charged particles.

sharris203
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Homework Statement


An electron moves through a uniform magnetic field given by B = Bxi+(3.0Bx)j. At a particular instant, the electron has velocity v = (2.0i+4.0j)m/s and the magnetic force acting on it is (6.4x10-19N)k. Find Bx.

Homework Equations



Fb=|q|v x B

The Attempt at a Solution



B = Bxi + (3Bx)j + 0zk
v = 2xi + 4yj + 0zk
Fb = 0xi + 0yj + (6.4 * 10^[-19]N)k

I'm sure I need a matrix. But i can't figure it out, help!
 
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