Magnetic fields within a toroid inductor.

[Dave45]

The B field and A field are two seperate fields, when you understand this things start to make sense. All the nonsense about particles popping in and out of dimensions is ludicrous.
If current is moving away from you in a wire the A field is coming towards you, the A field moves opposite the applied current, when I say current direction I mean neg to pos.
Using a single toroid the A field will loop the toroid but using two toroids the A fields of both toroids will join and loop both toroids, if wound and connected right.
The A field can also be spun between the two toroids if the winding is wound as I have showed.
If you look at the pic of the solenoid froze in ice you can see the A field. I have seen this field spinning in my ice experiments using a toroid,it creates a vortex.

[Dave45]

Once you understand this concept you can see exactly how Ed leedskalnin's PMH works, there is a magnetic field flowing in the toroid and an electric field flowing in the air looping through the toroid, as long as the magnetic field is not interrupted the fields will continue for years, but when the magnetic field is broken the electric field collapses into the coils and will light a bulb. There are quite a few vids on youtube showing this effect.
simple simple simple
Ac reverses the magnetic field within a toroid this change in magnetic field direction causes the electric field to collapse into the secondary and we get a transformer. simple simple simple

[xee2]

So am i right in understanding that the current loop is strongest at the center of the toroid core? or is it the magnetic field that is strongest at the center of the core-or both?.

The current is the same everywhere in the wire. The magnetic field is strongest inside the toroid along a circle whose points are at the centers of the cross-sections of the toroid. In the same way that the magnetic field is strongest along the center line of a solenoid coil. The toroid coil is like a solenoid coil bent into a circle.

EDIT 1: Theoretically the field inside the toroid is uniform, not stronger in the center because the  toroid is like an infinitely long solenoid.


EDIT 2: MileHigh has pointed out that this still is not correct, the magnetic field is strongest at the inner edge of the toroid because the toroid does not have equal length sides like a solenoid.

[poynt99]

So am i right in understanding that the current loop is strongest at the center of the toroid core? or is it the magnetic field that is strongest at the center of the core-or both?.

I'm not sure what you mean Brad.

By "current loop" do you mean the secondary winding?

By "center of the toroid core" do you mean the center of the "doughnut hole" or the center of the toroid core cross-section?

See also xee2's post, above.

[MileHigh]

Xee2:

The magnetic field is strongest inside the toroid along a circle whose points are at the centers of the cross-sections of the toroid. In the same way that the magnetic field is strongest along the center line of a solenoid coil. The toroid coil is like a solenoid coil bent into a circle.

Unfortunately that's not correct.  Please have a look at the clip I linked to again:

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

MileHigh