explain why some pieces of iron behave as magnets, while others do not.?
A magnet has all the negitive and positive charges lined up. If a piece of iron is not magnatized you can make it so by rubbing it with another magnet or if you arre really wanting to do it the hard way Hold it to true north and hit one end with a hammer. The vibration will shake up the charges and if you do it long enough the natural magnetic pole will line them up therefore magnitizing it. I have only have a very basic introductory class of physics, so I may not have used the proper languageLOL
A magnet has all the negitive and positive charges lined up. If a piece of iron is not magnatized you can make it so by rubbing it with another magnet or if you arre really wanting to do it the hard way Hold it to true north and hit one end with a hammer. The vibration will shake up the charges and if you do it long enough the natural magnetic pole will line them up therefore magnitizing it. I have only have a very basic introductory class of physics, so I may not have used the proper languageLOL
becos of basic electronic configuration. according to Pauli's exclusion principle and all that, some elements have there arrangements to allow magnetic props. others dont. i think they called them ferromagnetic elements.
Some ores of iron, which are naturally exposed to earth's magnetic field, acquire magnetism. Or when exposed artificially to B for long time, these acquire magnetic property. Depending upon the ores of iron, when external magnetic field is removed, say be extracting those ores from parent location, the material does not shed its magnetic properties. The property of material to retain magnetism even after source of magnetization is removed (made zero) is called its RETENTIVITY - English meaning ability to hold back as memory. The degree of retentivity varies with ferromagnetic materials. This can be seen during adiabatic demagnetization of paramagnetic salt through B-I-H cycles you may read in higher standard.
becos of basic electronic configuration. according to Pauli's exclusion principle and all that, some elements have there arrangements to allow magnetic props. others dont. i think they called them ferromagnetic elements.
