Magnetism - Magnetism is a matter of alignment
Magnetism is a matter of alignment
What turns an ordinary piece of iron into a magnet? A large iron bar actually contains millions of "mini-magnets," small magnetized areas called domainsSmall regions in iron that possess their own magnetic charges.. Each has a north pole and a south pole. If the poles of the iron's domains are aimed in all different directions, their magnetic forces act against one another and cancel each other out. When all of the domains are facing the same way, the bar becomes a magnet because it now has a single, strong magnetic fieldThe space around an electric current or a magnet in which a magnetic force can be observed., a space in which its magnetic force can be observed.
How can we get all the domains facing the same way? This can be achieved by repeatedly...
[The entire page is 437 words long]
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