Physics of Magnets :: physics science magnet

Magnets ar one of the fundamental items in physics. This page is designed in order to provide a general overview of attractions and their uses as well as an in depth look into authoritative aspects of magnetic force.We all know certain situations where magnets are utilise, hanging things on a refrigerator for example. But other(a) applications are oft more useful in our society. They are used in all kinds of speakers, and in many a(prenominal) computer parts including big(p) drives and floppy drives ( for recording and reading purposes). Perhaps a more honey oil use that goes unnoticed is the magnetic strip on credit and calculate cards. These create a certain magnetic makeup, that is why you are to postponement them away from other magnets. Magnets are also used in many motors, in such items corresponding a dishwasher, DVD and VHS players, and a beeper or cell phone vibrator.Magnets are all dipoles, that is they all have both a north and a southernmost pole. No know mag netic monopoles exist. Looking at magnets from a basic point of view, opposites rend and similars repel. Magnetic field lines always move from the north pole to the south pole, we will discuss this later.Some of the major contri notwithstandingors to magnets are men like Hans Christian Oersted, James Clark Maxwell, William Scoresby, Michael Faraday and Joseph Henry.Hans Christian Oersted experiment with a wire carrying a current and a compass led to much of what we know intimately Magnetic Fields.James Clark Maxwell discovered relationships between electricity and magnetism many of which are used in the Electromagnetic Theory. More training on the relationship between magnets and electricity can be establish here.William Scoresby used the Earths magnetic fields to produce powerful magnets.Michael Faraday and Joseph Henry are reported to have simultaneously discovered electromagnetic induction, which is the effect whereby the relation motion of a magnet and an electric coil prod uced a current. in that location are three types of magnets. Permanent, temporary, and electromagnets. Permanent magnets are the most common ones. at once they are magnetized they stay so (although they can lose much of their magnetic force). They can be surfaces found in nature. Temporary magnets crap the properties of a magnet while in a magnetic field, but lost these properties once the field goes away. An example of this would be a motif clip that is charged and can act like a magnet for a short while. Electromagnets are wires wrapped around a metal center(usually iron).