In a permanent iron magnet, all the tiny magnets that preexisted in the iron sample's iron atoms are aligned in the same direction and work together. When the iron is heated the tiny magnets are free to take on random orientations and the permanent magnet is demagnetized. That said, containing a molten mass of iron inside a strong (electromagnetic?) magnetic field would align all the tiny magnets (like the earth aligns floating compass needles). If the iron is maintained within the field while cooling to room temperature it will become a permanent magnet. Magnetizing molten iron may allow it to be "pumped" if the field is strong enough. Scientists can determine how lava was oriented relative to the magnetic poles when it cooled by checking the orientation of tiny iron magnets within it. This has helped prove that entire continents have drifted due to plate tectonics.
2006-10-31 01:10:36
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answer #1
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answered by Kes 7
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molten iron can not be magnetized .
Also, solid iron gradually lose its ferromagnetic property by heating(rising temperature). for example iron in 700 C (which is far less than its melting point) is not ferromagnetic and can not be magnetized.
2006-10-31 00:50:00
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answer #2
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answered by Ormoz 3
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No it cannot be magnetized, because in a molten state, the molecules are in flux. To be magnetized the molecules must be stable.
2006-10-31 00:40:08
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answer #3
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answered by Jack 7
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There are some situations where it can be. Here are a couple of links to get you started. People seem to be just beginning to understand this phenomenon.
2006-10-31 00:57:53
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answer #4
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answered by justaguy 2
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Our Earth's core seems to be magnetized... and I believe that it is molten. I would have to do an experiment to verify this, but I don't have the equipment.
2006-10-31 00:45:57
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answer #5
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answered by Anonymous
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nope.. it can't be magnetised.
2006-10-31 00:47:05
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answer #6
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answered by bex 2
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No. Fusion.
2006-10-31 00:40:12
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answer #7
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answered by Anonymous
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