How do you prepare electromagnet?

Answer 1

An electro magnet is an electrically charged coil of wire, called a solenoid, it usually has a magnetic metal core in the centre, iron would be good. The coil has to have an electrical current run through it to magnetise the metal.

Answer 2

I've made a few using the laminated silicon-steel cores from toroidal Transformers. TIG-weld very shallow beads radially across the core laminations on both sides at 45° intervals, and again immediately in-board of where you want to make your air-gap. Once welded, use a slitting saw (a Dremel will probably work too) to cut out the section to make your air-gap. Insulate with Kapton tape and wind with your required wire and number of turns.

Similar can be made with a ferrite core too, this time using a diamond slitting saw to make the air-gap cuts. Take care to support the core well when cutting in this case as the ferrite can be fragile...

Good luck.

Cheers... P

Answer 3

An electromagnet consists of a coil of wire, wrapped around either empty space

or else an iron core, with electric current flowing through the coil.

To make an electromagnet stronger:

-- Wind the coil with more turns of wire.

-- Insert an iron core through the center of the coil.

-- Increase the current (amperes) flowing through the wire.

Answer 4

take a small piece of wire and cut the ends out so that the copper part of the wire is shown . Then take a nail and wound the wire tightly on the nail so that the both ends are facing towards you . Then take a battery and attach both the ends to the battery.Then take some iron fillings and put it on a flat surface.then take the battery and catch it in your hands and bring the nail near the the iron fillings . Then the iron fillings get attracted to the nail.

so you can make an electromagnet

Answer 5

as there is nothing called an "electronic magnet" i assume you actually meant an electromagnet.

to make an electromagnet wind insulated copper wire around an iron rod. about 1000 turn of wire on a large nail will do. then power the coil with a battery like a 1.5 volt igniter cell.