- #1
tim9000
- 867
- 17
This question is a continuation/topic-extrapolation of:
https://www.physicsforums.com/threa...ng-to-special-relativity.856482/#post-5374651
My question is 'how is the electromagnetic field different from some sort of mere electric-charge field?'
The issue I have with the video posted in the thread is that, it kind of implies that the a magnetic field is just an electric field from different reference frames in special relativity, in which case the 'electromagnetic field' which permeates the universe would really just be a 'charge field' (positive and negative, like an electric field rather than electromagentic)...
So electromagnets work according to special relativity but not quantum mechanics, and permanent magnets (residual magnetism) work according to quantum mechanics, but not special relativity?
Thanks
https://www.physicsforums.com/threa...ng-to-special-relativity.856482/#post-5374651
My question is 'how is the electromagnetic field different from some sort of mere electric-charge field?'
The issue I have with the video posted in the thread is that, it kind of implies that the a magnetic field is just an electric field from different reference frames in special relativity, in which case the 'electromagnetic field' which permeates the universe would really just be a 'charge field' (positive and negative, like an electric field rather than electromagentic)...
So electromagnets work according to special relativity but not quantum mechanics, and permanent magnets (residual magnetism) work according to quantum mechanics, but not special relativity?
Thanks