All Questions
12
questions
2
votes
1
answer
126
views
Does the magnetic field, circulating the moving uniformly charged sphere, exert force/tension on it? If so, how is it interpreted in the charge frame?
I am aware of this SE question, however, it does not solve my problem. Assume that a bulk uniformly charged nonconductive sphere is set in motion along the $x$-axis in the lab frame of reference. ...
- 2,503
1
vote
2
answers
120
views
How can two observers agree on the force between 2 moving charges?
I'm having a hard time figuring this out. This question has been asked before, I saw the answers, but I'm still struggling with this. So I decided to ask.
I want to calculate the same force for both ...
- 11
-1
votes
2
answers
260
views
U-shaped magnet and the moving charge: Where is the origin of the Lorentz force from the viewpoint of the moving charge?
Assume that a charge $+q$ is located at rest between the poles of an infinitely long U-shaped magnet, which is laid along the $x$-axis. If the charge slowly accelerates to a velocity $v$ along $x$ and ...
- 2,503
4
votes
2
answers
2k
views
Do Magnetic forces obey Newton's Third Law? [duplicate]
If we have two magnets and one is brought towards the other, the north of the former magnet is facing north of the latter. Now the other magnet is repelled which is obvious and Newton's third law is ...
- 817
-2
votes
0
answers
71
views
Magnetic force is pseudo? [duplicate]
Is magnetic force pseudo
Magnetic force exist only if charge is moving , so it must be pseudo . Imagine , a positively charged man who has the same speed as electron (charge). So , he doesn't feel any ...
- 395
-2
votes
3
answers
403
views
Is magnetic force pseudo?
Is magnetic force pseudo
Magnetic force exist only if charge is moving, so it must be pseudo.
Imagine, a positively charged man who has the same speed as electron (charge). So, he doesn't feel any ...
- 395
0
votes
1
answer
71
views
Do all forces of nature produce opposite force when they move?
I am not sure if I understand it right but as I see it any two moving charge particles must repel each other like they are not moving relative to observer that moving at the same speed as they moving,
...
- 149
0
votes
2
answers
102
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Do closed line integrals need to be evaluated in "the line's" rest frame?
I've seen it said that the definition of emf requires that the integral be carried out in the circuit's rest frame.
\begin{equation*}
\mathcal{E} =\oint \mathbf{f} \cdotp d\mathbf{l}
\end{equation*}
...
- 15
1
vote
2
answers
86
views
About fundamental physics (static fields, forces, and energy)
Disclaimer, so that you can provide a more informative answers: I have a degree in mathematics but I am quite ignorant in physics.
I was reflecting about the ability of a charged particle (any ...
- 194
2
votes
3
answers
2k
views
Lorentz transform of force
If a particle of mass $m$ and velocity $v$ is moving due to a constant electric force what would the force be in the the frame where the particles velocity is 0?
To try and solve this I used the four ...
- 331
6
votes
1
answer
1k
views
Resemblance between Coriolis force and magnetic part of Lorentz force
If we interchange velocity with charge and omega that is rotation of a system with $B$, magnetic field, we get the same thing. Is there any deeper meaning to this same mathematical form?
- 1,803
5
votes
1
answer
4k
views
Two electron beams exert different forces on each other depending on frame of reference?
I am sure there is a simple explanation for my confusion, but I am a little puzzled:
We are dealing with two parallel electron cannons that each produces a straight beam of electrons. They are placed ...
- 53