Скачать или смотреть Convenience Outlet

Convenience OutletWhen you plug a measuring appliance into a wall outlet you use the electricity which has been generated by a power plant. The power plant may be located on a river dam or it can receive energy from another source, such as a nuclear power plant. Most often, though, coil or natural gas combustion is used. The direction in which electrons flow changes 100 times per second. That means they perform a unidirectional motion 50 times per second. Such change of electron flow is called the alternating current.Current reversal with the return to the original direction represents a cycle, or a period. The number of such AC cycles per second is called frequency. It is measured in special units called hertz. In Europe a 50 Hz frequency is used. That means that electrons change their direction of motion 100 times per second.The electricity of a hydroelectric power plant is generated when water rotates the turbine with a wound wire inside a giant magnet. Conductors and magnets interact in such way that when a conductor is moving in the magnet's presence then an induced electron flow occurs in the conductor. Initially these electrons move in one direction. Then when the conductor's loop turns 180 degrees the magnet reverts the electrons. Such rotation generates electric current.It is simple to insert a plug into a wall outlet. However, in most cases you will need direct current for your designs. If you want to use outlets then you'll have to convert alternating current into direct current. This is easy to do when you have a power supply unit. This can be, for example, a charging device of your mobile phone. It consumes AC and produces DC which charges the battery.