No I realize that the charge densities can only be equivalent in one frame. My question is why this is always the lab frame. I realize that we are only considering an uncharged wire, implying that that is a standard case in nature. My problem is that I don't see why this is the standard case. It...
Looking at the diagram showing the test frame and the lab frame,
It all makes perfect sense if I accept that the ions are equally spaced out in the lab frame.
Couldn't I just as easily say that the charge densities are unequal in the lab frame such that when transforming them to the test...
Well see there is my issue. I have gone through my textbook (Purcell actually) several times and they give more or less the same answer. After thinking about it some more I have a better way of expressing my issue:
There is a current wire and a frame stationary relative to the positive ions...
So I'm pretty sure I have the right answer I just want to make sure I am getting the idea.
There is a large solid copper cube. At the center of the cube there is a hollow sphere of radius a. At the center of the hollow sphere there is a charge Q.
What is the total charge induced on the...
E & M Magnetism Relativity "Paradox"
:confused:In theory the laws of magnetism are derivable from coulomb's law and special relativity. Right. While my physics homework group were doing a problem set, I came up with this seeming paradox. (This isn't a homework question). There are 2 senarios...