Recent content by JiuBeixin

  1. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    except the force, cause I don't know the force's direction in frame ##S## now.
  2. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    Thanks! You are right. I really dont know the details about Maxwell's equations and Lorentz transformation, so can you give me some advices that where should I begin my study of these laws, as I am only a beginner.
  3. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    Here is the question. Why force is perpenducular to the object's velocity? In frame ##S'## the force is perpenducular to the conductor(in my case)
  4. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    Thanks everyone here!:coffee: Now, I’d like to clarify that in my mental model, I don’t treat "electric" and "magnetic" forces as separate entities. Then, I've realized that my previous confusion came from assuming the force vector's direction is "fixed" during frame shift. That means a downward...
  5. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    In my model, the conductor is electrically neutral in the lab frame (##S##), so there is no net electric field (##\vec{E} = 0##). Therefore, the ##q\vec{E}## term vanishes, leaving only the magnetic component
  6. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    You are right. Now I do not treat the electric and magnetic fields differently. I veiw lorentz force as a special electric force but caused only when related moving occurs. And I didn't say that Lorentz force is perpendicular to the magnetic field.
  7. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    Thanks yoru reply. But I still have question. As I know, Lorentz Transformation is a frame tranformation. How could it affect the direction of force? And, I only know a little about Lorentz Transformation, so do you know where can I learn more about Lorentz Transformation?
  8. JiuBeixin

    Undergrad Why is the Lorentz Force always perpendicular to velocity?

    I represent the conductor as two parallel lines: stationary protons and electrons moving at velocity ##v##. A test object with a positive charge also moves at velocity ##v## parallel to the electrons. In frame ##S'## (the rest frame of the object), the object experiences a repulsive force (the...
  9. JiuBeixin

    A simple self-introduction

    Hey everyone! Here is a senior high school student. I am pretty into the essential principle behind the textbook's knowledge. Hope I can have a good time with you! :)