icester
Senior Members-
Posts
47 -
Joined
-
Last visited
Content Type
Profiles
Forums
Events
Everything posted by icester
-
Read the post history carefully or try to remember because I stated at least twice that is Lorentz who claims without experimental confirmation that there is EMF on wire moving with constant linear velocity in uniform and constant magnetic field... Static has many meanings but exact conditions are specified clearly... See the MIT's reference in my updated paper...
-
I have updated my paper: OrmanForce.pdf
-
No, static magnetic field does not induce EMF: https://en.wikipedia.org/wiki/Induction_equation
-
Yes, but that is eddy current and induction... Take a 3 foot magnet magnetized perpendicular to it's length and drop a copper ring around it and no effect at all because acceleration is two low for the force to make visible effect...
-
Read the chapter "10.2 Motional EMF" http://web.mit.edu/viz/EM/visualizations/coursenotes/modules/guide10.pdf
-
Well if you find it distasteful you do not have to post...
-
https://en.wikipedia.org/wiki/Electromotive_force
-
Those descriptions are unrelated to Lorentz formula F=q*v*B or I*B*L... The calculator description states " The voltage generated in a length of wire, presuming that the entire length moves through a uniform field, is given below. " If it required changing field the parameters describing the change would be in input fields... But there is no single experimental setup that confirms the EMF...
-
I fail to see connection between those assumptions and experimental setup that existed in reality... First link just shows scope traces and talks about induction which is related to changing field not constant uniform one and the second link is just a calculator not an existing experimental setup...
-
Just for convenience please point me to at least one such example setup....
-
OK, please provide an example of correct setup...
-
The intent was a call for help debarking my experiment on Lorentz force and I got response, thank you... Since no one has suggested experimental setup which would show Motional EMF I have concluded that Lorentz force equation is defective or false... Base on that I wrote my own paper where I claim the new force with correct equations, mathematical simulation in Matlab and links to current classroom reference...
-
Your questions are answered and just need to read the history more carefully... And since you are not answering my questions I wish not to extend this conversation with you because it is not useful to any party...
-
What question is that I refuse to answer? No, that is my scientific paper but at this point I fail to understand what is you intention on this thread... Please, describe an experiment where a wire is moving with constant velocity in constant magnetic field...
-
I've said " And there is no changing magnetic field in rotating magnet because it rotates around it's axis of symmetry... " is correct because changing means that either and or flux intensity changes and or orientation changes and or acceleration is non zero... Cutting trough identical flux lines with constant frequency is what constant velocity motion in uniform magnetic field is... Here is the Orman Force on an electron moving in uniform magnetic field accelerated by uniform electric field in Matlab script format: OrmanForce.m
-
I never said "I do not have wire moving trough magnetic field"... I've said that there is no EMF when wire moves with constant velocity trough constant magnetic field ...
-
No, I state clearly, and long magnet to have a long uniform field for the wire to move trough must have north pole across it's length on wider width side and south on the other wider one... Just like I said perpendicular to it's length... Your statement "in general, uniform motion of a wire through a magnetic field will generate a voltage." refers to what the universities teach except they provide no experimental evidence at all, now and in the past...
-
It is the same with long bar magnet magnetized in direction perpendicular to it's length and as long as there is parallel and relative constant linear motion between magnet and wire the Lorentz force and apparent EMF is zero...
-
Magnetic field is rotating relative to stationary wire as stated before I also checked the case where magnet is stationary and wire is rotating just to prove to my self that motion is always relative...
-
I was referring to constant linear velocity and NOT instantaneous velocity which can be a part of accelerated motion... Electrons move with accelerated motion forming electric current which represents average velocity and not constant linear velocity... Thus Hall effect is related to dynamics of electrons... By the way, Lorentz also claimed the true force equation as his own but is should be called Laplace force as Laplace was the one who formulated the equation of force regarding constant magnetic field and current caring conductor... So, Hall effect is due to Laplace force...
-
Please, be specific and point to where I have said something different...
-
It means that the Lorentz force on a charge moving with constant linear velocity in constant uniform magnetic field is zero regardless of charge magnitude q, magnetic field magnitude B and velocity magnitude v... Thus F = q * v * B = 0...
-
The orientation o charge velocity is irrelevant because constant linear velocity is not affected by magnetic field regardless of magnitudes of both, field and charge... If such phenomena existed then we would have inertial navigation device 100 years ago due to simply moving wire in Earth's magnetic field... Lorentz was the inventor of aether and I suspect that is why he formulated his mathematical model assuming existence of his Luminiferous aether: https://en.wikipedia.org/wiki/Luminiferous_aether To my knowledge it is irrelevant what moves and what remains still as long as there is relative motion... It is called simple relativity... Lorentz absolute motion is a failed concept...
-
If you read the thread carefully you will find out that Lorentz claimed otherwise. You do get voltage proportional to the velocity of charge particle moving in uniform magnetic field... There is even online calculator where the apparent Motional EMF can be calculated: http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/genwir3.html#c1