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  • Electricity and Magnetism

How is electricity produced?

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βˆ™ 2015-05-29 01:30:12

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Most electricity in the world is produced by burning fossil fuels like coal, oil and natural gas. The heat is usually used to produce steam which turns electric turbines which generate electricity. This energy is called non-renewable, because the fossil fuel can only be used once. Burning fossil fuel also releases a lot of carbon dioxide, a dangerous greenhouse gas. It is for this reason that great efforts are being made to generate electricity from renewable sources.

Electricity can also be produced from the movement of wind (windmills) and water (hydro-electric dams, wave power and tidal power). This is renewable energy as the power that produced it will still be here tomorrow.

Electricity can also be produced from solar photovoltaic cells which capture the light of the sun and convert it to electricity. This is renewable energy, and the only kind that doesn't come from movement.

Generators or turbines convert mechanical energy into electrical energy using magnetism. When a wire moves through a magnetic field a electric current is produced. In a turbine there is a magnet at the end of a rotating shaft. This magnet spins inside a conducting ring that is wrapped with a long piece of wire. Every time the magnet passes a part of this wire a small current is produced. All the separate small currents add up one large current which is the electric power.
Electricity can be generated by various means.

1.Hydro electricity - by running water with high pressure on turbines.

2.Steam Generation by burning coal - using the steam to run turbines.

3.By Gas turbines - similar to the above.

4.Using wind energy.

5.Using solar energy.

6.Using Tidal waves.

7. Nuclear energy.
Electricity can be generated by various means.

1.Hydro electricity - by running water with high pressure on turbines.

2.Steam Generation by burning coal - using the steam to run turbines.

3.By Gas turbines - similar to the above.

4.Using wind energy.

5.Using solar energy.

6.Using Tidal waves.

7. Nuclear energy.
Electricity is produced from, and because of, various effects and interactions involving the fundamental force: electromagnetism. While the different types of effects and interactions involved are far too numerous to list here, those which result in producing or changing electric charges are what we call electricity.

Some examples of effects and interactions involving electric charges; i.e., electricity, are:

  • Varying magnetic fields
  • Electric currents
  • Static electricity
  • Lightning
  • Converting stored chemical energy into electrical energy; i.e., batteries
  • Arc lamps
  • Generators
  • Dynamos
  • Motors
  • The nervous system

The commercial production of electricity involves turning various sources of potential and kinetic energy into electrical energy. Some examples of energy sources are:

  • Wind
  • Water
  • The Sun
  • The atomic nucleus
  • Chemical reactions

These sources are then converted into electrical energy by the principle of electromagnetic induction. This is the phenomenon in which a varying magnetic field produces a current in a closed circuit. The way this works is that an energy source, like those listed above, are designed to transfer their energy into mechanical energy, usually by causing something to turn, or rotate. If this rotating object is a conductor, and if it is situated inside a magnetic field, an induced current is produced in the conductor. This current is then stored and ultimately transferred, via power lines, to homes, businesses, or anywhere else that needs electricity.

2015-05-29 01:30:12
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2015-05-29 13:16:34
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There are a number of ways it is produced. The most common is the burning coal. It is easy and fairly effective. Nuclear power is another one which although protested by some, is used some. This is efficient and very effective. One reactor can safely produce more than many coal plants. If the ban on radioactive waste recycling was lifted, this could become even more efficient and there would be almost no waste left over. There are also peripheral sources--those which cannot supply a significant amount of power compared to the need, but still help some. Those include Wind and Solar "farms," and hydroelectric plants (which is the most effective peripheral source).

2015-05-29 13:16:34
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