Loop of Lines of Force
This is more realistic than having a proton far from a vibrating electron
because it is hard to pull apart unlike charges over any large distance.
So what do the lines of force look like if we combine the wiggling line from the
vibrating charge with the stationary line from the opposite charge?
Loops? Where do they come from?
Isn't that the way an antenna works?
That's right, Kyla, only it's not just one charge moving relative to another in an antenna,
but a whole bunch of electrons moving -- a current. It looks something like this --
That would make a great movie!
Is there any way we can tell how strong the electric force would be on those lines of
force in the movie? I'm trying to visualize that.
Actually, there is a way. Wherever the lines of force are closely packed the electric
force is strong. Where they are far apart, the electric force is weak, or even zero.
Those are magnetic field lines -- the magnetic part of the electromagnetic wave.
Oh -- something different. Tell me about the magnetic field part of an electromagnetic wave.