Magnets how to form?

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Every atom within the metal on both electrons in a circular motion around its, resulting in a small magnetic field strength (ie Ampere force), usually one per

Atoms on the direction of movement of electrons are different, and so the direction of the force is different, so the final force is 0, that is, no magnetic force.
When most of atomic electron moving in the same direction, the direction of the force on the overlap, and thus produce a comparative force is magnetic force, with the magnetic field

Force, this metal is naturally a Neodymium Arc Magnets slightly.
As formed, there are many methods can make the electron motion in the same direction, such as north-south direction allowed after heating the metal stand to cool.
This is a high school sophomore physics class students will learn the content. Is the "molecular electric current ampere hypothesis" content.

Magnetic field has a variety of metal-on-force, no exceptions. However, in three cases. Thus the metal is divided into three types: paramagnetic, reverse magnets and ferromagnetic.
1 paramagnetic: Can be a magnet to attract slightly. magnetic trapping
(2) inverse Magnet: Magnet will be slight exclusion.
3 ferromagnets: will be strongly attracted to a magnet.
Ferromagnet only three: iron, cobalt, nickel. Rest or paramagnetic or inverse magnets. As well as their alloys, the magnetic properties are different degrees of proximity ferromagnetic content

Body .
Nickel-containing stainless steel may be a radial magnet (strong) attractive. Nickel-free stainless steel (usually containing chromium) reflect this iron faint and difficult to detect. The latter because it contains

Chromium and high hardness. The former is commonly referred to stainless steel iron.
Aluminum and copper thin with longer suspension, and make it still does not swing. Lateral slowly approaching magnet aluminum or copper, can be found that will be slightly attracted or repelled. The

With their difference is paramagnetic and inverse magnets.


Generic magnet magnet
The magnet is a magnet.

Magnets can suck iron, nickel, cobalt and other metals, commonly known as a magnet. Can be divided into general common permanent magnet, and the magnetic solenoid is energized only have. Magnetic

If the rod is made of iron or needle and hung up, it is natural to point to the Earth's South Pole and the North Pole. Divided into large and small magnet magnet magnet.

Large magnet magnet is so widely used, the use of electromagnets, made transporting steel cranes. Powered magnetic become powerful magnets, they are able to suck the bulky

Steel. Steel cut off the power down as long as you can.

Small magnet with a large magnet contrast, compass appears to be both small and light, but also a lot of weak magnetism. The role of the compass is not the absorption of iron, which is to reflect the Earth

The magnetic force.

Magnets attract iron, cobalt, nickel and other properties of matter called magnetism. Both ends of the magnet poles strong magnetic area is known, one end of the north (N pole), one end of the south pole (S

Pole). Experiments show that the same magnetic poles repel each other, opposite poles attract each other.

Many iron having two opposite magnetic poles of the original, in the absence of external magnetic field, these original disordered magnets,? Their magnetic offset each other, seen no significant

Show magnetic properties. When the magnet is close to the iron, the former under the action of the magnet magnets, neatly lined up, so that one end of the magnet close to the opposite polarity of the magnet

The polarity attract each other. This indicates that the iron exists because the original magnet can be magnetized magnet. While copper, aluminum and other metals are not the original magnet structure, it is not

Be attracted by a magnet.