We do electromagnet with his own hands

Electromagnets - is an integral part of any modern appliance and its design is fairly simple: it is usually a ferromagnetic core with a wound on his copper coil. In this article, we will examine, thereby creating the effect of magnetism and gather electromagnetic homemade improvised.

How it works

Let's take an ordinary wire, and will submit to one end of the positive charge and the other negative. In this case current will flow through it and around the conductor creates a magnetic field, but weak enough to be signified.

To increase the capacity of the field, you just need the same conductor to twist into a spiral.

In this embodiment, the magnetic field of each coil is added, and we get the classic electromagnet.

And the number of wound turns and the power of the electromagnetic field has a direct relationship, that is, the more turns, the stronger the field is created. As further field enhancement contributes located in the center of the coil a metallic core.

So, now you know how a magnet, let's put ourselves in the aforesaid conventional metal nail, a piece of wire and a battery.

Build a homemade electromagnet

To successfully build our device will need:

Nail. As the saying goes, "the more the better," I have been in the garage in the presence of a "weave."

Insulating tape. It is we need to secure the feeder element (batteries).

The insulated wire of about 0,5 - 1 meter would be sufficient.

So, we proceed to assembly. To do this, take our nail, and, departing from the edge of the centimeter and leaving wires overlap of a few centimeters, we begin to wind it very tight rings.

When he reached the edge, leave lapping another 12-15 centimeters and cut off the excess wire.

Then take a battery with electrical tape and secure it on the already wound wire as follows.

Now we clean the free ends (I ends were cleaned in advance), and one of them is fixed in such a way that it is constantly touching the battery poles and the second just move to the other pole.

Now you can test the functionality of our new electromagnet. A clear demonstration is shown in the video.

Important. Do not leave the electromagnet, it will not only lead to a rapid weak batteries. Another constant battery life will lead her to significant heat and can even be burned. Be careful and cautious.

As you can see, nothing complicated in the manufacture of homemade electromagnet no. And it is not just a toy, but also a device for the extraction of small metal parts caught in hard to reach places.

Thanks for attention!