Hello sir, Relativity offers explanations for the magnetic force between a moving charge and a wire with current, attributing it to concepts like length contraction and charge density variations. I recently encountered an explanation regarding a real case scenario where a wire contains both electrons and protons. However, my question pertains to a hypothetical scenario: How does relativity explain the generation of a magnetic field in an infinitely long wire uniformly composed of either positive or negative charges? Specifically, when a charge moves perpendicular to this uniform charge distribution, the Lorentz force law predicts a horizontal magnetic force. How does relativity account for this horizontal magnetic force in the absence of traditional current flow? Could you elaborate on the theoretical framework that relativity provides to understand these magnetic effects in a wire with uniform charge distribution, particularly addressing the role of length contraction and charge density variations in this context?
@davidgarofalosteachingcorner
27 күн бұрын
If the current is horizontal and a charged particle is at some distance, say, above the current and is also moving with velocity in the horizontal direction, the magnetic force will be in the up/down direction due to the cross product between velocity and magnetic field. At the most basic level of analysis, If you observe this from a reference frame in which only static charge exists, you will find an electric force replacing the magnetic force.
@paxshild4924
27 күн бұрын
@@davidgarofalosteachingcorner Could you please make a video explaining how relativity explains the leftward magnetic force on a proton moving perpendicularly to the current in a wire? It would be a great addition to your content! kzitem.info/news/bejne/koqBuZp3pImIgWUsi=NaRakXn6ASCUvfzH
@paxshild4924
27 күн бұрын
@@davidgarofalosteachingcorner Could you please make a video explaining how relativity explains the leftward magnetic force on a proton moving perpendicularly to the current in a wire? It would be a great addition to your content!
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