Friday, 30 March 2018

electromagnetism - Is there energy stored when iron is magnetized?


When a piece of iron is magnetized, and the domains are aligned, Is there energy stored? If so, how much energy is stored? If there is an attraction between that same iron and the source of the exterior magnetic field,where work is done, and there is energy that is transferred. Is the energy equal to that of which is stored in the alignment of the domains?


And how much energy is stored or needed to align the domains?




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