You will need
- ebonite and glass rods, the air capacitor, magnet, tank, guides.
Instruction
1
Getting electric polybasite ebonite rod and RUB it with natural hair - as a result it is charged negatively, it will be an electric field. RUB the glass rod with a piece of silk is positively charged. To detect the presence of an electric field, hang these sticks on tripods, as a result of interaction through the field they will get attracted. If you hang two glass or two ebony sticks, they will be repelled due to the electric interaction.
2
To obtain the electric field another way to take the air capacitor and charge it plates of opposite charges. Between them appears an electric field. To find its tension with a voltmeter measure the potential difference (voltage) on the plates in volts and divide it by the distance between them, measured in meters. The result is in volts per meter.
3
Receiving the electric current using a simple electroplating will lamentavelmente a large capacity (will fit an old bucket or even a plastic bag) and fill it with earth. Liberally pour ground concentrated saline solution and insert a steel and copper plate at opposite ends of the tank. Attach them to the ends of the voltmeter and verify that there is a potential difference. It should be approximately 1 volt.
4
Getting electricity in magnetic polozhite two powerful magnets and install them to each other unlike poles. Place between them a straight conductor, connected by flexible conductors with a millivoltmeter. Move the conductor between the poles of the magnets. The milliammeter will show the appearance of EMF in the conductor electric current flows.