It is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments.
The phenomenon of magnetism is mediated by the magnetic field. An electric current or magnetic dipole creates a magnetic field, and that field, in turn, imparts magnetic forces on other particles that are in the fields. The magnetic state (or magnetic phase) of a material depends on temperature and other variables such as pressure and the applied magnetic field. A material may exhibit more than one form of magnetism as these variables change. There is one general effect of conductivity on magnetism. If the magnetism is changing over time then it stirs up eddy currents in the conductor. Those eddy currents create magnetic fields which tend to cancel the changes in the field in the region of the conductor.  Motors are based on these facts about magnetism. An electrical current is just a bunch of moving electrical charges. Therefore if you place a wire carrying a current in a magnetic field, there will be a force on the wire, and the wire will move. By arranging everything in the right way, you can make a motor. Electric motors use both electricity and magnets to create motion. The incoming electricity provides the power and generates magnetic fields which convert the power into motion. Motors are basically the opposite of generators. One uses electricity to generate motion and the other uses motion to make electricity. The Earth is one big magnet. Electricity is the movement of magnetism. Magnets have a north and south pole because the force of magnetism is flowing from north to the south. The Earth has a north and south pole named so because of the magnetic force flowing through it. As you go toward the north or south pole, you begin to enter greater magnetic forces. Q1) If Gravity and Magnetism are different forces then why does a magnet come to rest aligned with the North and South pole of the earth. Q2) Has there been any study on magnetic forces between to magnets under various gravitational environments (Moon, Space and on Earth). There are several things that can affect the strength of a magnet. and depending on what you do with your magnets they will either be in tip top shape or start to lose their powers. If you want the best type of magnets for durability you need to get permanent neodymium magnets. Neodymium magnets belong to the group of permanent magnets and are used in high quality magnetic jewelry. If you get a magnetic bracelet with neodymium magnets you will see that the magnets have a protective coat. This might make you think that the strength of the magnets will be weaker. In brief, people often call the fields of electricity and magnetism by the term electromagnetism.. The reason for this name is that electricity and magnetism are very closely related. They both deal with the movement of electric charges like the electrons that flow through wires, that we know as electricity. Electric motors use both electricity and magnets to create motion. The incoming electricity provides the power and generates magnetic fields which convert the power into motion. Motors are basically the opposite of generators. One uses electricity to generate motion and the other uses motion to make Cracks in the Magnet. Neodymium magnets belong to the group of permanent magnets and are used in high quality magnetic jewelry. If you get a magnetic bracelet with neodymium magnets you will see that the magnets have a protective coat. This might make you think that the strength of the magnets will be weaker. Basically, the flow of electricity through a wire creates magnetic fields, and certain types of magnetic fields (they have to change with time) cause the flow of electricity. Generators of electricity use magnets to generate the electricity. Electric motors use both electricity and magnets to create motion. The incoming electricity provides the power and generates magnetic fields which convert the power into motion. Motors are basically the opposite of generators. One uses electricity to generate motion and the other uses motion to make electricity. The magnets stimulate electrical responses in the brain. Transcranial direct current stimulation is just what it sounds, applying the current directly to the brain.. Magnetic fields can improve your memory and even control your behavior and sense of morality. This video shows just how strongly they can affect your brain. New Scientist editor Roger Highfield's recitation of Humpty Dumpty is interrupted by magnetic interference. Visit the Mercola Video Library Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. The magnetic state (or magnetic phase) of a material depends on temperature and other variables such as pressure and the applied magnetic field. A material may exhibit more than one form of magnetism as these variables change.
https://en.wikipedia.org/wiki/Magnetism http://van.physics.illinois.edu/qa/listing.php?id=368 http://scienceline.ucsb.edu/getkey.php?key=3168 http://van.physics.illinois.edu/qa/listing.php?id=225 http://www.magneticbracelets.com/what-can-affect-a-magnets-strength.html http://scienceline.ucsb.edu/getkey.php?key=3168 http://www.magneticbracelets.com/what-can-affect-a-magnets-strength.html http://scienceline.ucsb.edu/getkey.php?key=3168 http://articles.mercola.com/sites/articles/archive/2011/04/27/powerful-demonstrations-of-how-magnets-can-affect-your-brain.aspx https://en.wikipedia.org/wiki/Magnetism
what does magnetism affect