Windmills produce electricity by electromagnetic induction, the process in which the movement of magnets in a magnetic field generates electricity. In a windmill, when wind moves the blades of the windmill that move the rotor, the rotor rotates a shaft that holds magnets in the magnetic field of the generator, generating alternating current that is sent along power lines.Know More
The Department of Energy holds that wind turbines provide an alternative and clean energy source to fossil fuels. Wind energy is abundant, renewable and one of the least expensive energy technologies. It can revitalize rural communities because wind farms are built in the country where wind is unhindered, and farmers can still plant crops on the land because the turbines do not take up much space. Windustry claims that wind energy can produce up to one-fifth of the nation's energy. The Wind Energy Foundation has stated that in 2013, Colorado generated almost 14 percent of its electricity using its 1,530 wind turbines with a total capacity of 2,332 megawatts.
According to How Stuff Works, people have been using wind energy since 3,000 B.C. in sailboats. One thousand years later, windmills came into being for grinding grain. The windmill was first used to produce electricity in the 1930s.Learn more about Electricity
A transformer changes the voltage of an electric current while transferring it from one circuit to another through electromagnetic induction. Fluctuating magnetic fields in the transformer generate an electric current in a coil of wire, and the voltage they put out is directly proportional to the number of turns in the coil of wire.Full Answer >
Hydroelectric power is the converting of energy coming from running water to produce electricity. Hydroelectricity is a similar term that refers to the electricity that is produced from this process.Full Answer >
The abbreviation "mA" denotes the International System unit for electrical current known as the milliampere. One milliampere is equal to one-thousandth of an ampere. The unit is named for the 18th and 19th century French physicist Andre-Marie Ampere, who studied electromagnetism.Full Answer >
Electricity is important because it is versatile, controlled easily and is used in everyone's daily life. Without electricity, humans would have to use other forms of energy that are less efficient.Full Answer >