The so-called unipolar generator differently called Faraday's disk is one of the first magnetic electric generators created in the world in general. Its distinctive features - considerable output current at a small tension and also lack of need to use the rectifier.
Instruction
1. Take the animator who with a frequency of rotation of the handle making several dozen revolutions per minute develops the frequency of rotation of an output shaft which is several hundreds of revolutions per minute. As such animator it is possible to use practically any reducer with suitable parameters (for example, from a toy car with the motor) if to use its entrance shaft as day off and vice versa.
2. An entrance wave of the animator put on a handle and day off - a disk from aluminum with a diameter about 200 millimeters. Arrange the animator by means of a vertical bracket on the firm isolating and nonflammable basis so that at rotation it was touched by neither a disk, nor a handle.
3. Establish on the parties from a disk small brackets. On each of them fix on the flat spring parallel to a disk. One of them has to nestle on it with one, another - on the other hand.
4. Take a large horseshoe magnet. Make for it the holder by means of whom dispose it on the basis of at an angle in 45 degrees to the horizontal plane so that the disk appeared between its poles. The handle should not touch it at rotation.
5. Install on the basis of on some removal from the generator the microampermeter. Connect it to brushes.
6. Untwist the generator. If the arrow deviates not in that party, change the direction of rotation or polarity of connection of the measuring device. Do not rotate the generator too quickly that the arrow did not read off scale.
7. Perhaps, to you the principle of operation of the unipolar generator constructed by you is unclear. Everyone in a school course of physics was accustomed to a thought that the direct current at electromagnetic induction cannot be developed. Address for explanations the teacher of physics, or enter inquiry of ""Faraday's disk"" into the search engine. You will find out that the principle of its work is quite explainable in terms of classical physics.