electromagnets

[Phiber]

question. how do i make an electromagnet?
do i need the magnetic wire to be insulated?
and can a nail be used as a core for it??

thank you for your answers.

 

[Harald Kapp]

Look here.

 

[Phiber]

thank you very much.. I was just asking because im not really sure of what I would use. I saw some electromagnets where they used magnetic wires that are uncovered with insulators and some are covered.
thank you very much sir

 

[CocaCola]

thank you very much.. I was just asking because im not really sure of what I would use. I saw some electromagnets where they used magnetic wires that are uncovered with insulators and some are covered.
thank you very much sir

All the wires are covered, the ones that appear not to be covered are in fact covered with a very thin 'paint' (lacquer) coating...

 

[john monks]

Phiber, to make an electromagnet simply find some old plastic covered 22 gauge telephone wire, wrap about 100 turns around a nail, then connect to a 1.5 volt D cell.

The wire is not that critical but must be insulated as CocaCola says. And the number of turns is not that critical. Have fun.

 

[Phiber]

thank you very much people.. I appreciate your help.
thank you