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Old Apr 8th 2015, 02:42 AM   #1
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Electromagnet to attract small iron pieces

i want to build an electromagnet which can attract small iron pieces(2-3 mm long) at a distance of 10 cm from the magnet.I am using 24 awg. magnet wire.Please help .answer these questions -
1) How long magnet wire (24 awg) do i need?
2)How much current
3) what shud be least radius of solenoid
4) can i use iron nails as soft iron core
5) How can copper loss be reduced
6) what is effective length of electromagnet
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Old Jul 24th 2015, 12:17 PM   #2
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You will definitely be utilizing an iron or a ferrite core inside the solenoid. Are you planning to use an AC or a DC source? For DC source a soft iron would be perfect for your electromagnet. If you opt for an AC source you might consider using a punched transformer. For the current you could check the maximum ampacity of the wire you have and you could start your design based on this factors.
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Old Jul 26th 2015, 10:30 PM   #3
Pmb
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Originally Posted by hackhard View Post
i want to build an electromagnet which can attract small iron pieces(2-3 mm long) at a distance of 10 cm from the magnet.I am using 24 awg. magnet wire.Please help .answer these questions -
1) How long magnet wire (24 awg) do i need?
2)How much current
3) what shud be least radius of solenoid
4) can i use iron nails as soft iron core
5) How can copper loss be reduced
6) what is effective length of electromagnet
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