ELECTRICITY

Types of Electricity or Electric Current There are two types of electrical current: direct current (DC) and alternating current (AC). Electrons in direct current flow in one direction. The current produced by a battery is direct current. The electron in alternating current flows in one direction, then in the opposite direction, again and again. In Canada … Leer más

The Summary of the History of Electricity The Greeks first discovered electricity about 3,000 years ago. Its name comes from the word «elektron», which means amber. Amber is the fossilized yellow rock found in tree sap. The Greeks discovered that, if they rubbed the amber against the wool, light objects (such as straw or feathers) would … Leer más

The Electric Power Formula Often you must have seen that electrical energy is produced from electrical generators and even other sources, such as electric batteries. In addition, businesses and households often use this supply through the electric power industry via an electric grid. After that, electric companies measure the energy with the use of an … Leer más

When Was Electricity Created ? The truth about the discovery of electricity is a little more complex than a man flying his kite. In fact, it goes back more than two thousand years. We know that electricity has existed for thousands of years, because we know from texts that the Egyptians knew about the discharges … Leer más