- #1
Zaigon
- 8
- 0
I just read about how a magnetic field for a (neutral) wire with a current can be viewed as an electric field in a moving frame of reference because of lorentz contraction.
I now wonder why starting with a neutral wire without current and stationary electrons a charge is not produced when a current is send through the wire and the electrons move.
The argument should be that the charge density of the moving electrons is increased by the lorentz contraction of the "electronic fluid". Is it because the extra charge is removed by the battery when the current is turned on or is my argument simply wrong?
I now wonder why starting with a neutral wire without current and stationary electrons a charge is not produced when a current is send through the wire and the electrons move.
The argument should be that the charge density of the moving electrons is increased by the lorentz contraction of the "electronic fluid". Is it because the extra charge is removed by the battery when the current is turned on or is my argument simply wrong?