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An iron bar can be made magnetic when ______. A. its magnetic domains line up . B. it rotates it poles to line up with another magnet. C. it spins it's electrons in different directions.

Daniel King

in Chemistry

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Jeremy Wood on May 17, 2018

I think that the correct answer of the above mentioned options is option A. An iron bar can be made magnetic when its magnetic domains line up. These magnets are called ferromagnet has unpaired electrons. In the absence of an applied field, the magnetic moments of the electrons in the material to spontaneously line parallel to each other.


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