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Supplementary Information for
Supplementary Information for

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15 Electricity and Magnetism

... Key Concept How do electrically charged objects differ? Directions: Complete the concept map with the correct term or statement from the word bank in the space provided. Each term or statement is used only once. ...
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Lab 8: Faraday`s Law, generators, and motors

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Electromagnetic Induction and Alternating Current

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esa`s magnetic field mission

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What Generators Do and Regulators Ought To

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Pdf - Text of NPTEL IIT Video Lectures

... rare earth group which has two electrons in the 4f shell this ion is praseodymium 3 plus. So, it has 4f 2 therefore, the corresponding L value is there are two electrons the Hunts rules tells you, if I have different values of a mell which I represent here. So, this is M L equal to minus 3, minus 2, ...
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19-6 The Magnetic Torque on a Current Loop

< 1 ... 3 4 5 6 7 8 9 10 11 ... 161 >

Force between magnets



Magnets exert forces and torques on each other due to the complex rules of electromagnetism. The forces of attraction field of magnets are due to microscopic currents of electrically charged electrons orbiting nuclei and the intrinsic magnetism of fundamental particles (such as electrons) that make up the material. Both of these are modeled quite well as tiny loops of current called magnetic dipoles that produce their own magnetic field and are affected by external magnetic fields. The most elementary force between magnets, therefore, is the magnetic dipole–dipole interaction. If all of the magnetic dipoles that make up two magnets are known then the net force on both magnets can be determined by summing up all these interactions between the dipoles of the first magnet and that of the second.It is always more convenient to model the force between two magnets as being due to forces between magnetic poles having magnetic charges 'smeared' over them. Such a model fails to account for many important properties of magnetism such as the relationship between angular momentum and magnetic dipoles. Further, magnetic charge does not exist. This model works quite well, though, in predicting the forces between simple magnets where good models of how the 'magnetic charge' is distributed is available.
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