Tagged Questions
3
votes
1answer
105 views
Is there any potential associated with magnetism
Can anybody please tell me if magnetism is a conservative force or if there is a field associated with it? How to reason? One thing I know is that the work done by a magnetic force is $0$.
4
votes
1answer
299 views
Noether theorem and classical proof of electric charge conservation
How to prove conservation of electric charge using Noether's theorem according to classical (non-quantum) mechanics?
I know the proof based on using Klein–Gordon field, but that derivation use ...
-1
votes
1answer
781 views
Violation of Newton's 3rd law and momentum conservation
Why and when does newtons 3rd law violate in relativistic mechanics? Check this link http://www.animations.physics.unsw.edu.au/jw/Newton.htm.
2
votes
2answers
213 views
Which symmetry is associated with conservation of flux?
Which symmetry is associated with conservation of flux (e.g., in electromagnetism)?
For example, when working with Gauss's law in electromagnetism, net flux through an arbitrary volume element ...
3
votes
4answers
880 views
Energy conservation in Electrodynamics
Let us suppose that we have a known electromagnetic wave-train of finite size propagating in a certain direction. There is a probe charge on its way. This EMW is an external field for the charge. The ...
12
votes
5answers
1k views
How can there be net linear momentum in a static electromagnetic field (not propagating)?
I understand from basic conservation of energy and momentum considerations, it is clear in classical electrodynamics that the fields should be able to have energy and momentum. This leads to the usual ...
