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Old 02-15-2010, 01:01 PM
witsend witsend is offline
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Join Date: May 2009
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So back to magnets. They will always conjoin with other magnets and, given ideal circumstances, the north of one magnet will conjoin to the south of another. That's its strongest connection. So these magnetic dipoles may align north to south. That means they'd all line up to make a string. But if the string were to stay 'open' with the first and last magnetic dipole somehow unconnected - then that string would not be strong. It's best - it's most symmetrical arrangement would be to form a loop where the last magnet in the string would join up with the first magnet in that string. And that would then describe a closed loop or a circle. This is in line with Faraday's 'lines of force' which he used to conceptualise the shape of the field.
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