Physics Help Forum Electromagnet to attract small iron pieces

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 Apr 8th 2015, 02:42 AM #1 Junior Member   Join Date: Apr 2015 Posts: 1 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
 Jul 24th 2015, 12:17 PM #2 Junior Member   Join Date: Jul 2015 Posts: 1 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. __________________ pcb quote
Jul 26th 2015, 10:30 PM   #3
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 Originally Posted by hackhard 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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