Magnet Myths and Misconceptions

[EMJunkie]

There is defently a field transition at the center of the dipole . The field to the left of the dipole center is different to that of the right of the dipole center.

Yes agreed Tinman! Ferrofluid Experiment clearly shows this, repeatable every day of the week!

Kind Regards

  Chris

[poynt99]

Thanks poynt
This of course is exactly what my test setup showed.my uestion would be now is why when the center of a magnet (between the dipole) is passed across an inductors core, no power is generated if this is the point of the largest part of the flux field.MarkE seems to think there will be power generated (unless he misinterpreted my question), but as we know, there is none.

When you swipe an inductor past the north end of a magnet, you obtain a strong pulse of polarity x. When you swipe the inductor past the south end of the same magnet, you obtain a pulse of roughly the same magnitude, but polarity y (the opposite to x), correct?

Can you surmise why when you swipe the inductor across the middle of the magnet you obtain little to no pulse amplitude?

[MileHigh]

One last example.

In science, and in the science of electronics and electromagnetics you start by solving for very basic examples.  A classic question is what is the magnetic field like around a wire carrying some current where the wire is infinitely long.  It may sound silly, but it is real.  Another classic is to ask what is the electric field like around an infinitely long line of electric charge.  One more time, this is absolutely real even through it sounds silly.  If you can figure these things out using deductive reasoning, then you can figure all sorts of other things out.

Here is another question:  You have a single loop of current-carrying wire.  What is the magnetic field like at any point along the axis of the loop of wire?   Have a look at the clip.  Even if you can't follow the derivation the end of the clip should make sense.  One more time, there is no Bloch wall in sight anywhere.

https://www.youtube.com/watch?v=lN296gUXkl4

Understanding these concepts is all part of the step-by-step learning process to understand how the world around you works.  If you studied physics or engineering or one of several other disciplines, you sat in class and went through stuff like this step by step.  Again, this is real science.

[EMJunkie]

Chris:

Take a look at this clip.   "The Magnetic Field due to a Toroid."

This clip is real science.  There is no "Bloch wall" in sight.  He uses techniques similar to my "traveling through a magnet."

Look at the formula, all of it is derived through logical deductive reasoning, nothing else.

https://www.youtube.com/watch?v=pCSHcftPAIM

This is real science, the real deal without any funny shenanigans going on.

MileHigh,

If you're representing the Earth as a Toroid, or Bar Magnet as a Toroid, then your Magnetics is clearly so far distorted that a sensible debate is not possible. This is the same as trying to find where the road goes at the same time you're building it - goes where you want it to!!! Same as your Imaginary Experiment!!!

I have already explained why this argument is mute! This is for the same reason as the Iron Filing experiment is mute!

Please spare us all this total non-sense!!!

[MarkE]

The later half of my post was in regards to PMs on a rotor, as it was in my post where you answered-but it is.
You pass the center of a pm past an inductors core, and no power is generated. But with this electromagnet test, most power is generated at the center of the magnet (electromagnt)

Tinman there is no surprise here.  The contours are parallel to the dipole near the center.  Iron filing experiments show  this fact.  The compass demonstration I just posted show this fact.  Induction through a pick-up coil as you have constructed shows this fact.  If we move the magnet or the coil parallel to the magnet's axis, then near the center there is the least change in flux crossing the pick-up coil and induction from the parallel motion there will be less than at the ends.  This too is completely consistent with almost 200 year old science.