Does electron beams act like current carrying wires to themselves?

AI Thread Summary
Two electron beams passing by each other do exhibit magnetic interactions similar to those in current-carrying wires. The nature of the force can be viewed as either purely electric or a combination of electric and magnetic, depending on the observer's frame of reference. This behavior is rooted in the relativistic effects of magnetic force. The discussion highlights the parallels between electron beams and conventional current flow in wires. Understanding these interactions is crucial for applications in fields like particle physics and electromagnetism.
universal_101
Messages
324
Reaction score
3
I was just wondering, that if we have two electron beams passing by each other, would there be any magnetic interaction between them ? Just like, electrons in current carrying wires.

I asked the similar question earlier but with the change that one of them was a current carrying wire, whereas here both of them are electron beams.

Since, magnetic force is considered as a relativistic effect, I'm curious how it comes to play when we have only electron beams.
 
Physics news on Phys.org
hi universal_101! :smile:
universal_101 said:
… Just like, electrons in current carrying wires.

yes, same thing

(and whether you call it a purely electric force, or a mix of electric and magnetic, depends on which frame you're using)
 

Thread 'Maxwell stress tensor'

This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as ##T_{ij} =\epsilon_0 (E_iE_j-\frac 1 2 \delta_{ij} E^2)+\frac 1 {\mu_0}(B_iB_j-\frac 1 2 \delta_{ij} B^2)##. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of ##E_{ij}=E_iE_j-\frac 1 2 \delta_{ij}E^2##. In matrix form, this tensor should look like this...
View full post »
Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...
View full post »

Similar threads

I Angular momentum associated with a current carrying circular wire
Replies
9
Views
2K
I Does electron beam in empty space generate magnetic fields?
Replies
7
Views
2K
I Charge movement relative to magnetic field frame dependence/invariance
Replies
5
Views
918
I Does current decrease inside a wire or does it increase it's velocity?
Replies
8
Views
2K
  • Sticky
Insights Symmetry Arguments and the Infinite Wire with a Current
Replies
0
Views
4K
Conservation of Energy on Current-Carrying Wire in Magnetic Field
Replies
2
Views
1K
I Magnetic field as result of length contraction
Replies
20
Views
4K
I Does a Railgun's Current Violate Conservation of Momentum?
2
Replies
61
Views
5K
How Fast Does an Electrical Impulse Travel in a Copper Wire?
3
Replies
100
Views
10K
Charged particles through various B field shapes quesion
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top