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| Magnetism and Gauss's Law |
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| Gauss's theorem in electrostatics indicates that isolated charges exist and that electric lines of force do not form closed loops. The situation is different in magnetism. The Gauss's law in magnetism therefore will be |
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| i.e., the net magnetic flux through any closed surface is zero. This reflects that isolated magnetic poles do not exist. The simplest unit in magnetism is dipole (or bar magnet). |
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