An electromagnet is a very useful device, which is widely used in industry and in many areas of human activity. Although this device may seem complicated in design, it is easy to manufacture and a small home electromagnet can be made in home conditions from improvised means.
Let's see the process of creating this homemade in the video:
In order to make a small electromagnet at home, we need:
- Iron nail or bolt;
- Copper wire;
- Sandpaper;
- Alkaline battery.
At the very beginning it should be noted that it is not advisable to take too thick a wire. A copper wire with a diameter of one millimeter is perfect for the future electromagnet. As for the size of the nail or bolt, the ideal option would be a length of 7-10 centimeters.
So, let's start manufacturing a mini electromagnet. First we need to wind the copper wire onto the bolt. It is important to pay attention to the fact that each coil is tightly adjacent to the previous one.
You need to wind the wire so that a piece of wire remains at both ends.
Next, using sandpaper, we remove the insulation from the ends of the wire.
It remains only to connect our wires to the source, namely the alkaline battery. After that, our bolt will attract metal elements.
The principle of operation of an electromagnet is very simple. When an electric current passes through a coil with a core, a magnetic field is formed, which attracts metal elements. The power of an electromagnet depends on the density of the coil and the number of layers of copper wire, as well as on the current strength.