A source of electrical energy

Certain tools which could cause an electric current is called the source of electrical energy, as shown below.
a. A source of electrical energy: voltaic elements, dry elements, batteries, dynamos and electric motors.
b. Italian natural scientist, Alessandro Volta made an electric energy source known as voltaic elements. Voltaic elements is a source of electrical energy which can be quite large flow of electric current. Voltaic elements composed of slab zinc (Zn) and copper plates (Cu) were dipped in a solution of dilute sulfuric acid (H2SO4). The reaction between the solution of dilute sulfuric acid and zinc lead zinc negatively charged plate. The reaction between the solution of dilute sulfuric acid and copper positively charged. If we connect the zinc plate with a small lamp, the lamp was lit up.
c. The batteries can supply power, because it is said batteries as a power source. Each power source can deliver electricity. Batteries of many kinds, there is a dry battery, there is also a wet battery.
d. Battery drug is a chemical substance called salmiak. Battery wet because there is fluid in the battery.
e. Bicycle dynamo consists of a U-shaped magnet and a coil. When the bicycle dynamo rotates, the coils are located in the center of the magnet rotates. Turnover magnet that causes an electric current.
f. Dynamo generator is very large.
g. Electricity from generating stations is channeled through the wire to the electrical substation. From this electric substation electric power supplied to places with removing it through wires anyway.