- #1
nathan.br
- 3
- 0
Hi,
I came to the following article, and I have a questions about it:
http://galileo.phys.virginia.edu/classes/252/rel_el_mag.html
From this article, it seems that if the electric current is not flowing in a wire, but instead in vacuum there will be no repelling force (since there is no background positive charge). If there is no repelling force, what we call magnetic field in the wire frame of reference will not exist.
Can I conclude that an electric current does not create a magnetic field if it is flowing in vacuum?
I came to the following article, and I have a questions about it:
http://galileo.phys.virginia.edu/classes/252/rel_el_mag.html
From this article, it seems that if the electric current is not flowing in a wire, but instead in vacuum there will be no repelling force (since there is no background positive charge). If there is no repelling force, what we call magnetic field in the wire frame of reference will not exist.
Can I conclude that an electric current does not create a magnetic field if it is flowing in vacuum?