Electricity and Magnetism

How is electricity produced?

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Wiki User
2015-05-29 13:16:34

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).

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2015-05-29 01:30:12

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.


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