Velocity Selectors: Why Opposite Direction?

  • Thread starter Thread starter v_pino
  • Start date Start date
  • Tags Tags
    Velocity
AI Thread Summary
Fast electrons experience a greater force from the magnetic field compared to slower electrons, leading to their movement in opposite directions within a velocity selector. The discussion references the Lorentz force law to explain this phenomenon. The presence of an electric field in the velocity selector also influences the behavior of the electrons. Clarifications on the specific mechanics of how these forces interact are sought. Understanding these dynamics is crucial for comprehending the operation of velocity selectors in particle physics.
v_pino
Messages
156
Reaction score
0
I understand that fast electrons will experience a larger force from the magnetic field and slower electrons will experience a smaller force. But how come they will move in opposite directions?
 
Physics news on Phys.org
v_pino said:
I understand that fast electrons will experience a larger force from the magnetic field and slower electrons will experience a smaller force. But how come they will move in opposite directions?

What "opposite directions"? Please show where you got this. Use the Lorentz force law.

Zz.
 
here is the image of a section of the velocity selector

thanks
 
v_pino said:
here is the image of a section of the velocity selector

thanks

I guess this makes sense, because an electron is too small to see with the naked eye.

{ZapperZ smacks himself silly}

Zz.
 
LOL :smile:
 
v_pino said:
I understand that fast electrons will experience a larger force from the magnetic field and slower electrons will experience a smaller force. But how come they will move in opposite directions?
The velocity selector also has an electric field.
 
Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...
I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
Back
Top