View Single Post
DiracPool
#4
Dec25-12, 02:08 AM
P: 534
Magnetism in a current carrying wire

Oh yeah, there's a perhaps importantly-related number 4 question too:

4) Is magnetism a relativistic effect as asserted in this video:

http://www.youtube.com/watch?v=0H3_y...D99A4&index=27

whereby the sideways force I'm curious about has to do with increased electron charge density due to length contraction? I've heard about this model in a couple different places but it doesn't seem to be widely discussed. Is this relativistic model generally accepted or is it a fringe theory?