What are the two laws of magnetism?
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Opposites attract.  The same polarities repel.
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http://en.wikipedia.org/wiki/Magnets\n\ngo there if u wanna find out, i only know simple version...
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Well even though humans have known about magnets for thousands of years, the real reason they work is still somewhat mysterious. Depending on how deep you want to investigate, it can be a very complicated phenomenon. \n\nA magnet is, at its foundation, caused by the movement of electrical charge (yes this is the Biot-Savart Law). When charges (like electrons for example) move, they produce magnetic fields. If a charge moves in a loop, it creates a magnetic field. The magnetic field can be basically represented by an invisible set of arrows in space, that point in a direction. In the case of the loop, the arrows of the magnetic field will point out of the loop for a positive charge moving counter clockwise (this is the so-called "right hand rule"), and into the loop for a charge moving clockwise (some pictures are in the reference attached). \n\nThe magnetic field has a "north" end and a "south end". The little arrows from our moving charge are pointing in the "north" magnetic direction, and away from the "south" magnetic direction. It is a mysterious and interesting property of electromagnetism that two objects with fields that oppose each other, i.e., the little arrows of the field do not line up, so either the north end of one field is facing the north end of the other field, or the two south ends are facing each other, repel, or resist movement of the two objects towards each other with some force. \n\nOn the other hand, if the little arrows line up, the two objects attract each other with some force. \n\nThe forces that result from magnetic fields (and for that matter, electric fields) are fundamental forces, and part of the four fundamental forces of the universe (strong, weak, electromagnetic and gravity).  It is believed that these forces are caused, at their base, by particles passing "messenger particles" back and forth. In the case of electromagnetism, the messenger particle is a photon. How this actually works is still somewhat poorly understood, and is involved with the world of quantum mechanics, which is very counterintuitive but interesting. \n\nHowever, what is important is that we understand it well enough to make models of magnetism, and to make predictions based on those models which we can verify and use. All of electricity and electric motors are based on our ability to design systems with magnets and to be able to build and use them.
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Ampère's circuital law . This equation describes how an electric current generates a magnetic field. Ampère's circuital law states that \n\nThe line integral of the magnetic field around any closed loop is equal to  times the algebraic sum of the currents which pass through the loop.
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OK, here they are verbally:\n\n"Maxwell's four equations express, respectively, how electric charges produce electric fields (Gauss' law), the experimental absence of magnetic monopoles, how currents and changing electric fields produce magnetic fields (the Ampere-Maxwell law), and how changing magnetic fields produce electric fields (Faraday's law of induction)." [See source.]\n\nGauss' Law--simply says electrons in motion will create a force field around the current.  This law follows the inverse square of the distance rule and the phenomenon is the basis for radio and TV broadcasting waves.\n\nThe monopole equation simply says that there must be both a north and south pole in magnetism.  (However, sometimes fictitious monopoles are used mathematically to solve some problems.)\n\nThe Ampere-Maxwell equation links changing electrical current to the creation of magnetic flux.  The Faraday equation links changing magnetic flux to the creation of electrical current.  This is the stuff that electric motors and electric generators are made of.\n\nThe Maxwell equations have a lot of practical applications.  Wave guides, such as for high powered radars, and coax cables, like for your TV, are designed using Maxwall equations.
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mass of the object\nforce of the magnet in a magnetic field\nthe object's own interference with the magnet
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gravity, strong force, weak force, and electromagnetivity
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Get two pieces of iron block. Turn a coil round one of them. Pass electric current through the one which has the coil turned round it. This will make the coiled piece of iron act like a magnet and will attract the other piece of iron. And you have made an electromagnet.
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No, there is no relation between angular momentum and magnetism- The "spin" of the electrons isnt a spin in the sense of moving in a circular direction, but just a convenient term to describe an essentially quantum quality of the electron-Similar to calling subatomic particles by Charm and Up...they dont describe the characteristic one would associate with macroscopic objects.  There is no sense of "motion" associated with electron spin.  At any rate, the electron is so infinitesemally (sp?) light compared to the atomic nucleus that even if it were moving, it wouldn't impart significant momentum to the object as a whole-even if it were a large fraction of the electrons.
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1. magnetic field B\n\n2. relativistic mass at double light speed, as you see it's imaginary ;)\n\n10. relativistic kinetic energy\n\ncould only guess about the rest. i hate tensors.
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Ferromags are substances that are strongly attracted by a magnetic substance. Some ferromagnetic  metals are iron, cobalt, nickel, gadolinium and dysprosium. To generate electricity from ferromags, take two iron sheets 5 cm wide. rub both of them using a bar magnet only in one direction for about 10 minutes. This will impart magnetic properties to d iron sheet. Then u arrange the sheets in such a way that u feel d force of attraction between the sheets. take a copper wire. make a loop out of it. rotate d loop in d space between d sheets with a constant frequency. Voila electricity generated at d ends of d loop
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http://en.wikipedia.org/wiki/Biot-Savart%27s_Law\n\nsee references at the end of the page
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ferromagnet materials will lose their magnetism if heated above a point known as the Curie temperature. \nExposure to an opposing magnetic field will "knock it down", but not demagnetize it completely.
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It's either just one charge: The electrical, which appears in positive and negative characteristics, or if you see "charge" in a more general way it's more then one charge: magnetism has also a source, but that appears always in dipoles, mass is the "charge" of gravity, but that appears just with a positive sign, and the strong interaction has three kind of charges, called "colour charges": red green and blue.\n\nTwo see an underlaying principle for this "chaos" we need the "Grand Unified Theory" which still is "work in progress" ;)
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A magnet whose magnetic properties is dependent on current flow.
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Good question:\n\nThere are two ways to create a magnetic field. One is to move charges or  create time dependend electric fields, that's part of the classical electrodynamics and referred to as electromagnetism.\n\nThe other one is through the "elementary magnets" in a substance. These elementary magnets are related to the spin of the subatomic particles, for example the electrons in a crystall lattice. That's what you usually call the magnetic properties, like ferro-, para-, ... magnetism.\n\nAlthough it seems that these are quite different things they are related to each other by the Einsteins theory of relativism.\n\nConsider a chain of moving electrons, each having an electric field. In the reference system of the electrons the just have the usual electric field of a resting electron. But a resting observer would see a different distance between the electrons because of the relativistic length dilation, and because of that feel a different electric field, if calculated properly this would explain electromagnetism as a relativistic correction to the electrodynamics.\n\nThe basic equation of quantum dynamics is the Schrödinger equation, which is a non relativistic equation and couldn't predict the spin. Dirac (and Klein and Gordon) made some relativistic extensions to the Schrödinger equation, and it showed up that now the extended Schrödinger equations (Dirac and Klein-Gordon equations) now contain the spin of the elementary particles.\n\nSo yes: From a phenomenological point of view there is a difference, and no, from a higher point of abstraction they are both relativistic effects and there is no difference.
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While both have attraction on one side and repulsion on the other side, a magnet can not shout. \nNext: A magnet retains its gloss and colour if stored properly even after ten years.