Directional movement.
The property of the magnetic field of the neutral zone of a permanent magnet is the presence of a directed force of motion (magnetic self-motion) with a pronounced attraction, bordering on dipole repulsion, with respect to any main pole of another magnet (a magnetized ferromagnet by the main pole of a permanent magnet).
When connecting unlike poles in series, we obtain a chain of motion in two directions (figure 1).
The appearance of an electric current.
Effect of the magnetic field of the neutral zone - The occurrence of an electric current in a conducting circuit moving in the magnetic field of the neutral zone.
We will insert a sharp iron core into the center of the copper coil. We will touch the center of the plane with the neutral zone of the magnetic cube with axial magnetization perpendicularly to the iron core and perform a reciprocating motion without an air gap, approximately 1/10 of the way along the plane with the neutral zone - a double-charge magnetic field of a dipole sequence (magnetic self-motion) - a multidirectional electric current arises.
The same actions with the main pole of a permanent magnet (electromagnetic induction) the current is negligible.
We insert an iron core into the center of the copper coil and with the plane with the neutral zone of the magnetic cube with axial magnetization perpendicular to the iron core of the copper coil with a fixed air gap, we perform a linear movement parallel to the internal lines of force of the magnet, with the approach and removal of the magnetic cube. (Let's compare the picture of the current occurrence with the permeability of iron). We get the end approach and removal of the main opposite poles (increasing and decreasing magnetic field) - currents of one direction, approximately 30%. At the plane with the neutral zone - 100% current of the opposite direction. The same actions without an iron core - the picture of the physical properties of the magnetic field is the same. (figure 3).
Obtaining electric current.
To compare the generation of electric current in front of a copper coil with an iron core, we will install a rotating round platform with an electric drive and alternately compare the generation of electric current between the main pole of a permanent magnet (electromagnetic induction) and a plane with a neutral zone (magnetic self-motion), installing a magnetic cube on a platform with a fixed air gap between the magnet and the iron core of the copper coil, with the same load we will get - electromagnetic induction - 60% of the current, magnetic self-motion - 100% of the current. (100% current is the highest indicator in this comparison.)
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