How Do You Create An Electromagnetic Field?
Electromagnets are metals that can be easily magnetized (usually because of their iron or nickel content) by loops or spirals of a moving electric current surrounding them. When the current is shut off, the metal loses most of its magnetism. You will see electromagnets used in remote entry systems, so that you can unlock a door from a distance. If you wind an electric current around an empty space, it will create a magnetic field, and any metals you place within the field will become magnetized. Tape the two batteries together so that each has a different end facing up. Make sure they are very secure and do not roll, or else you may lose your electrical current. Take two of the insulated wires and attach one to each of the paperclips. One should be attached on the end to each battery. Place one of the paperclips across the tops of the two batteries. If the paperclip does not reach to the center of each battery, you may have to unbend it so that it is longer. Affix a strip of tape along
