making a superrr strong electromagnet (1 Viewer)

jeniii

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Dec 6, 2005
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could i get any tips to make the strongest electromagnec possible with ...

< 4 m of wire.. (remainder to make a coil)
unlimited 9v batteries
a 10cm steel rod

its for a DC motor ... so should i make 2 electromagnets? (North and south) or just one .. and hope its strong enough. but 4m isnt enough ...

found 10cm steel rod (apprently its 99.0653.. % iron) but one layer of insulation used up like .. half my wire and could only pick up 1 pin. o_O

is it better to .. wrap less layers across an entire rod.. or wrap as many layers possible in a smaller area and concentrate the magnectism there? ... and the thickness. twice as thick wiring = double amount of layers ? .. yeayeyea? =D

where can i get soft iron? .. or iron bits.. bunnings? (nothing) .. plumber? ... or should a steel rod be enough.

:mad1: been thru like three 9v batteries already
 

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