Did Fleming Explain about His rules completely?

[kocthu]

Pls point out me every body. I wish to know why does the magnetic field and current are perpendicular to each other? Or is it natural phenomena?

 

[jtbell]

why does the magnetic field and current are perpendicular to each other?

A. Because of Maxwell's Equations for electromagnetism.

Q. Why are Maxwell's Equations the way they are?

A. Because the universe apparently has a local U(1) gauge symmetry.

Q. Why does the universe have a local U(1) gauge symmetry?

A. I don't know. That's as "deep" as we've gotten, as far as I know.

 

[Defennder]

That's a pretty good reply there, though I have no idea what gauge symmetry means.