Permanent magnet motor

[tinman]

How is that possible in a uniform field?

A big misconception is that a generator or motor requires changing flux density to operate.
In fact all magnetically induced generators work only by a conductor cutting flux lines, changing the flux density is only an easy way to achieve it.

It's no wonder things never get anywhere with this kind of thinking.
How on earth can a conductor cut lines of flux that dont exist?-->there are no magnetic lines of flux-the field is uniform.
The change in magnetic flux density is exactly what causes a current to flow through an inductor/conductor,not some imaginary lines of flux being cut.

[lumen]

It's no wonder things never get anywhere with this kind of thinking.
How on earth can a conductor cut lines of flux that dont exist?-->there are no magnetic lines of flux-the field is uniform.
The change in magnetic flux density is exactly what causes a current to flow through an inductor/conductor,not some imaginary lines of flux being cut.

You might want to research that a bit more. Flux lines do not exist but are used to show field direction.
It is in fact a conductor cutting a magnetic field that causes current flow and density is only a stronger field.
The Faraday generator uses a uniform field and yet the conductor has current flow.

This was 6th grade science

[ayeaye]

It is in fact a conductor cutting a magnetic field that causes current flow

Everything magnetic is because of the dynamic movement of electrons in the dipoles (atoms). When the magnetic field lines cut the wire, so to say, what likely really happens is that the electrons on one side of the nucleus, moving in one direction, come "closer" to the wire, in that they are less behind the positive charge of the nucleus. And the electrons at the other side of the nucleus, moving in the opposite direction, move "away" from the wire. Both of which cause the electrons in the wire to move in the same direction. For the same reason as the magnetic induction, which i described in a separate thread here.

But the induction by field lines cutting the wire is yes, not caused by the increase of the magnetic field, but rather by movement of the axis. Like when it's summer, the sun is not closer to the earth, but the earth axis is orientated so that the sunlight comes to a certain areas more at a greater angle.

[tinman]

You might want to research that a bit more. Flux lines do not exist but are used to show field direction.
It is in fact a conductor cutting a magnetic field that causes current flow and density is only a stronger field.
The Faraday generator uses a uniform field and yet the conductor has current flow.

This was 6th grade science

Well you must have faild 6th grade.
Go and have another look at the homopolar generator where the magnts move with the conducting disk. Now-how is that conductor moving in relationship with the magnets?-where and how is that conductor cutting the imaginary lines of flux.

You guys make me laugh. Here you are trying to explain the workings of magnetism, and yet you have no idea as to what the magnetic force is.

When you hold a ball in your hand while you are seated in a vehicle doing 70mph, the ball is not moving when the car is used as your reference point, but is moving at 70mph when that reference point is one without motion. Now apply this to the homopolar generator with and without the magnets being fixed, and see how you go.

[ayeaye]

In the Faraday's homopolar generator, as i already said, the forces to the electron in the disc, when the dipoles move circularly, before and after they pass the electron, form two vectors with the same force, which are at an angle from each other. The vector sum of these vectors is radial, and this makes electrons in the disc to move radially.

Now what is important is the movement of dipoles relative to electons. Electrons in a metal form an electron gas, which is independent of atoms, thus the electrons don't necessarily move together with atoms (dipoles). And in the homopolar generator, electrons are also not given a circular speed, they are only given a radial speed. This is why the effect happens also in a rotating permanent magnet made of metal, such as in the DePalma's n-machine. There when the magnet rotates, the dipoles in the magnet rotate, but the free electrons don't rotate, and thus the dipoles rotate relative to the electrons in the magnet.

Weirdly though, what is important is the movement of dipoles relative to the electrons. But if in the Faraday's homopolar generator we rotate the magnets, and the disc stands still, no current is generated. This though doesn't mean that relative motion is not important, this may mean that the rotation of the disc has some additional effect, like it makes the electrons more free.