Magnet Myths and Misconceptions

[EMJunkie]

@ALL - AC's Experiments are very good! But they are unfortunately un-conclusive. Not enough to Prove or disprove a final result.

All my experiments show that something is going on at the Bloch Wall.

Magnetic Field Lines DONT always diverge from Pole to Pole!

Again: I quote again, Walter Lewin: "So the Magnetic Field is really confined in the Solenoid, the Magnetic Field outside the Solenoid, as we discussed earlier, is almost Zero. There is only a Magnetic Field right Here, keep that in mind for what follows!"

Minute: 28:00

URL: https://www.youtube.com/watch?v=FUUMCT7FjaI

[Dog-One]

Again: I quote again, Walter Lewin: "So the Magnetic Field is really confined in the Solenoid, the Magnetic Field outside the Solenoid, as we discussed earlier, is almost Zero. There is only a Magnetic Field right Here, keep that in mind for what follows!"

Yet, we can induce a current in another loop, with any shape surface you want, as long as that magnetic field passes through our surface.

Great video Chris!   That is without a doubt the best explanation of how turns ratios work and induction in general.  The demonstration at the end of this video is also priceless.

[MileHigh]

All my experiments show that something is going on at the Bloch Wall.

Magnetic Field Lines DONT always diverge from Pole to Pole!

Again: I quote again, Walter Lewin: "So the Magnetic Field is really confined in the Solenoid, the Magnetic Field outside the Solenoid, as we discussed earlier, is almost Zero. There is only a Magnetic Field right Here, keep that in mind for what follows!"

Walter Lewin is not discussing Bloch walls in that quote.  The magnetic field outside the solenoid theoretically extends out to infinity, just like it does for a long straight current-carrying wire.  The amount of magnetic flux going through the core from south to north then returns outside the coil from north back to south but spread out over all space.  It's not rocket science.

[EMJunkie]

Walter Lewin is not discussing Bloch walls in that quote.  The magnetic field outside the solenoid theoretically extends out to infinity, just like it does for a long straight current-carrying wire.  The amount of magnetic flux going through the core from south to north then returns outside the coil from north back to south but spread out over all space.  It's not rocket science.

MileHigh - Denial in the face of a World Class Physicist - I know who I believe and it surely is not you MileHigh.

Really, right now, I don't care about the Bloch Wall, I care that ALL your Evidence and Experiments to refute the Bloch Wall are proven false by a World Class Physicist!

Walter Lewin: "So the Magnetic Field is really confined in the Solenoid, the Magnetic Field outside the Solenoid, as we discussed earlier, is almost Zero. There is only a Magnetic Field right Here, keep that in mind for what follows!"

Lewin / MileHigh

Yep, answer is obvious!

EDIT: Apologies, saw the M and read the post, just sounded like a MarkE Post. Apologies! Have amended the Name.

[EMJunkie]

Yet, we can induce a current in another loop, with any shape surface you want, as long as that magnetic field passes through our surface.

Great video Chris!   That is without a doubt the best explanation of how turns ratios work and induction in general.  The demonstration at the end of this video is also priceless.

Not a Problem DogOne! Glad you liked it!

Kind Regards

  Chris