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magnetic fields - Why iron filings sprinkled near a bar magnet aggregate into separated chunks? - Physics Stack Exchange
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homework and exercises - How can we determine if poles are North or South when viewing magnetic field lines formed by iron filings? - Physics Stack Exchange
![1) Describe how to map the magnetic field lines. 2) List at least four properties of magnetic field lines. 3) Do lines of magnetic field cross each other? Explain | Homework.Study.com 1) Describe how to map the magnetic field lines. 2) List at least four properties of magnetic field lines. 3) Do lines of magnetic field cross each other? Explain | Homework.Study.com](https://homework.study.com/cimages/multimages/16/diagram22_b977069599354708152.jpg)
1) Describe how to map the magnetic field lines. 2) List at least four properties of magnetic field lines. 3) Do lines of magnetic field cross each other? Explain | Homework.Study.com
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