Electromagnetic fields and force

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SUMMARY

The discussion centers on calculating the force on a proton using the equation F=q(E+v×B), where F is the force, q is the charge, E is the electric field, v is the velocity, and B is the magnetic field. Participants emphasize the importance of correctly determining the directions of the electric and magnetic forces, as they can influence the resultant force. The equation is confirmed to be a vector equation, necessitating the use of vector addition and the cross product for accurate calculations.

PREREQUISITES
  • Understanding of vector mathematics, particularly cross products
  • Familiarity with electromagnetic theory, specifically electric and magnetic fields
  • Knowledge of the Lorentz force equation and its components
  • Basic proficiency in physics, particularly in force calculations involving charged particles
NEXT STEPS
  • Study the Lorentz force law in detail, focusing on its application to charged particles
  • Learn about vector addition and cross products in physics
  • Explore the concepts of electric fields and magnetic fields in electromagnetic theory
  • Practice solving problems involving the force on charged particles in various field configurations
USEFUL FOR

Students studying physics, particularly those focusing on electromagnetism, as well as educators and anyone involved in teaching or learning about the forces acting on charged particles in electric and magnetic fields.

dtesselstrom
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Homework Statement


What is the magnitude of the force on the proton in the figure? View Figure

Homework Equations


F=q(E+v*B)

The Attempt at a Solution


Ive tried just putting the numbers into that equation provided and it doesn't work so I am guessing there is some more that I am missing. I've also tried subtracting the two because B and E are in opposite directions but this also didn't work.
 

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You just need that equation. Make sure that you get the directions af the forces right. Are you sure that the force resulting from B and the force form E are in opposite directions?
 
[tex]\vec{F}=q(\vec{E}+\vec{v}\times\vec{B})[/tex]

Speaking of directions, this equation is a vector equation and the x is a cross product.
 

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