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Physics
Classical Physics
Electromagnetism
Conceptual Question About Magnetism
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[QUOTE="Kajal Sengupta, post: 5539322, member: 600818"] I do not know whether this helps but let me try. Any concept in Physics should be tackled from the simplest level . Remember all great scientist were always trying to tell us that fundamental laws of nature are the simplest ones ( like F= ma or E = mc^2). Let me address some of your questions. What is at he poles? What are lines of force. To me they are just models to explain the behaviour of magnets. My take is that when scientista are trying to study the nature of unknown the first step is to find a model and test whether it is based on correct conceptions and agrees with experimental results. For example, if we want to study the nuclear reactions taking place in Sun we simply can not set up a laboratory there and conduct a test. So we device some model equations and verify it experimentally and tally with the observable facts.To me the idea of poles, field lines are all consequences of a model which agrees with observed facts. The origin of magentism is similarly explained by movement f charged particles in substance. The motion of electron in a n atom gives rise to magnetism. Since all substances contain electrons then why only certain substances exhibit the property? For that the model is spin up and down for magnetic moments.Well one could go on and on . My request is not to get entangled with too many concepts at the same time. One thing at a time may help. Happy studying Physics. It is a great subject. [/QUOTE]
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Electromagnetism
Conceptual Question About Magnetism
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