Magnet composition is iron, cobalt, nickel and so on
atom, The internal structure of its atoms rather special, itself has a magnetic moment. Magnet Type: Shape Magnet:
Square magnet, Shaped magnet, shaped magnet, cylindrical magnet, ring magnet, wafer magnet, magnet bar magnet, magnet frame magnet, property class magnet: samarium cobalt magnet, neodymium iron boron magnet,
Ferrite magnets, Alnico magnets, Ferrochromium magnets, Industry magnets: Magnetic components, Motor magnets, Rubber magnets,
Strong magnet, Plastic magnetic and so on. Magnet points
permanent magnetAnd soft magnetic, permanent magnet is coupled with strong magnetic, magnetic spin and electronic angular momentum into a fixed direction,
Soft magneticIt is added current (also a method of adding magnetic) and other current will be slowly losing magnet soft iron.
Suspension of the midpoint of the bar magnet with a thin wire, when it is stationary, both ends of the bar magnet will point to the south and north of the earth, the north end is referred to as the north pole or north pole, the south end is the south pole or S pole.
If you think of the earth as a big magnet, then Earth
Magnetic North PoleRefers to the south pole, geomagnetic south pole refers to the north pole. Between the magnet and the magnet, the same name pole phase exclusion, different name magnet pole attract. Therefore, the compass and the Antarctic are exclusive, the compass and the polar repulsion, and the compass and the compass are attracted.
Category: Magnets can be divided into "
permanent magnet"And" non-permanent magnet. "Permanent magnet can be a natural product, also known as
Natural magnet, Can also be made by hand. Non-permanent magnets, for example
Electromagnet, Only under certain conditions will appear magnetic.