Force between two charged particle beams -- proton and electron beams

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Homework Help Overview

The discussion revolves around the interaction between a proton beam and an electron beam, specifically focusing on the direction of deflection of the electron beam when the two beams are oriented in opposite directions.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the nature of the forces between charged particle beams, questioning whether the interaction is repulsive or attractive based on their orientations. There is a discussion about the equivalence of the electron beam to a proton beam in terms of direction and force interactions.

Discussion Status

The conversation is ongoing, with participants providing insights into the Lorentz Force equation and its implications for the problem. Some participants express uncertainty about the assumptions made regarding the forces between the beams.

Contextual Notes

There is mention of relevant equations that have not been fully listed, and participants are encouraged to consider the vector form of the Lorentz Force equation, indicating a need for clarity on the mathematical framework being applied.

carlyn medona

Homework Statement


A proton beam is going from north to south and an electron beam is going from south to north, so in which direction is the electron beam deflected

Homework Equations

The Attempt at a Solution

. [/B]
I thought an electron beam from south to north, would be equivalent to proton beam from north to south, and my textbook stated that force between two parallel proton beams is repulsive, so won't it be repulsive in this case too?
 
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carlyn medona said:

Homework Statement


A proton beam is going from north to south and an electron beam is going from south to north, so in which direction is the electron beam deflected

Homework Equations

The Attempt at a Solution

. [/B]
I thought an electron beam from south to north, would be equivalent to proton beam from north to south, and my textbook stated that force between two parallel proton beams is repulsive, so won't it be repulsive in this case too?
You did not list the Relevant Equations. Are you familiar with the vector form of the Lorentz Force equation? Try using that...
 
Okay in that case I got an attractive force, I can't assume electron beam in one direction equivalent to a proton beam in opposite direction?
 
carlyn medona said:
Okay in that case I got an attractive force, I can't assume electron beam in one direction equivalent to a proton beam in opposite direction?
Please write out the full vector Lorentz Force equation. The sense of the charge affects several things in the full equation...
 

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