Magnet Myths and Misconceptions

[EMJunkie]

In order to induce a voltage there has to be a cross product of conductor length and changing flux density versus time.  Near the center of a dipole the field runs parallel to the dipole. The field changes very little on either side of the center of the dipole.  Consequently, the db/dt is very low even though the field is as close to perpendicular to the coil as it is going to get.The field is most definitely present and readily detected as shown by many different experiment methods.  Dipoles like iron filings, compass needles, etc all align parallel to the dipole adjacent to the dipole midpoint.  They do that even when the dipole is aligned perpendicular to the earth's north south filed lines.  A compass brought in proximity to the dipole center remains locked to the dipole's field lines that run dead E-W at its midpoint.  If the hypothesis were true that the field lines curl towards the dipole at its midpoint, then that would be very apparent on the compass.  But the compass does not behave that way.  The curl to the center of the magnet hypothesis is false.The field at the center is dead parallel.  The longer the dipole the flatter the ellipse.Please refer to the diagrams and state what in particular you are having difficulty understanding.To the extent that the paper has a lot of friction or if we play games with electrical charge then we can develop force that competes with the turning moments causedby the local field intercepting the filings.

Oh my - MarkE - MORE BAD SCIENCE! Seriously!

Talk about flogging a dead horse! Get some Proof MarkE, stop talking rubbish with no substantial claims. ALL YOUR PROOF is WRONG!!!

Long Solenoid - Physics has already proven you wrong, nearly every science class for some 10 years does this experiment! What part of Experiment can you not understand? Experimental Proof is Hard Fact and yet you still refute it? Why I wonder?

Please go back to school!

[tinman]

Kindly point to the evidence you find the most compelling.Again please point to the evidence that you find the most compelling.Do you contest that a compass needle aligns closely to an external magnetic field, even one as weak as the earth's?  If you do not contest that a compass so aligns, and if you believe his contention that the field curls near the center of the dipole then how do you account for the fact that a compass in fact does not turn towards the magnet at its center even when the magnet is aligned E-W to the earth's magnetic field, thus providing the earth's magnetic field over and above the curl claimed?  How do you account for the fact that as EMJUNKIE himself acknowledges that a bar magnet passed through a coil at constant velocity monotonically crosses through zero voltage as its center approaches and crosses through the coil, when the double curl he hypothesizes would dictate a double voltage inflection around the midpoint?Where has EMJUNKIE posted even a single picture that is accompanied by a description or link  to the experiment set-up, that shows any evidence of his claims?Yes, it speaks very badly.

Like i said before Mark,your compass experiment is flawed. Now how about you try your own experiment,and let us know the result's of my test.
You take two bar magnets,and you face the north of one end of one magnet to the south end of the other magnet. You now place a 1/2 inch plastic spacer inbetween those two magnet,so as you have(N-spacer-S). Now you know that there is a north and a south field there(im useing north and south-as that's what were taught in school,and we all know how much you like sticking to what we are taught)-->now try your own test. As you will know without even trying the test,the results will be exactly the same as the test you wish us to carry out.
Like i said,your compass test is flawed,and of no use to this thread.

[tinman]

!st of many experiments carried out in the past year.
The picture tells the story,so no need for a long post.

[tinman]

Second of many test.
Once again,the pic tells the story

[EMJunkie]

!st of many experiments carried out in the past year.
The picture tells the story,so no need for a long post.

Tinman - I concur! My Experiments agree! In-fact B will be repelled from its position there at the Bloch Wall!

Kind Regards

  Chris