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W = kq1q2 r V = kQ r W → PE → KE
W = kq1q2 r V = kQ r W → PE → KE

From Last Time…
From Last Time…

To the Possibility of Bound States between Two Electrons
To the Possibility of Bound States between Two Electrons

... spins for reduction of minimal emittance restriction arisen from Eq. 1. In some sense it is an attempt to prepare the pure quantum mechanical state between just two electrons. What is important here is that the distance between two electrons should be of the order of the Compton wavelength. We attra ...
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... inductor and emf source, the loop rule is applied. • From x to y in the directon of current, there is a voltage drop across R is • From y to z, there is a self induced emf across the inductor given by ( the direction opposes the loop current) There is a potential difference of due to the emf source ...
Faraday`s law of induction states that changing magnetic field
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Document

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Electricity and Magnetism

Electricity - SFSU Physics & Astronomy
Electricity - SFSU Physics & Astronomy

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... to charges. Magnets can attract and repel each other. Magnets have poles that are the regions in the magnet that apply forces. Magnetic poles are not positive and negative, but rather North and South. ...
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Notes to follow ppt.

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(magnetic fields and forces) (PPT - 5.9MB)

Science 9: Unit D – Electrical Principles and Technologies
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The Hall Effect - The Ohio State University

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6F05pp_L29 - University of Iowa Physics

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Spintronics Integrating magnetic materials with semiconductors

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Exercise 1: As the bar in Figure below moves to the right, an electric

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Iguanodon

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Limits of statics and quasistatics (PPT

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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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