Coiled wire electromagnet
If you know about regular magnets an electromagnet is a slightly different thing. The YUHENG neat thing about electromagnets is that you can control the flow of electricity in them — when the electricity is on, the magnetic field is present; when it is off, the field disappears. That way you can choose when its works! When an electric current passes through a coiled wire, it generates a magnetic field around the conductor. The electromagnet gets its name because it produces a magnetic field when an electric current is passed through it. This magnetic field is what allows the electromagnet to attract and pick up metal objects. Coiled wire electromagnets are everywhere — in things you use every day such as speakers that blast tunes, motors that move stuff around, and doorbells that ding when you push a button.
Step 2: Then wind the wire around the nail. Take one end of your wire and wind it around the nail a few times. This copper wire for electromagnet is good because it will boost the magnetic field. Wrap the wire around the nail in a spiral after you have wrapped it several times. Leave about 6 inches of wire on both ends so you can connect it to the battery later.
