Where does voltage come from?

Answer 1

Connect one end of a piece of wire to a battery terminal and the other end to the other terminal. The ends of the wire become oppositely charged and the electrons in the wire flow along it towards the positive terminal. This causes the chemicals in the battery to change and eventually they will all be changed and the battery will be flat. It will then be unable to keep the ends of the wire oppositely charged and the current will stop.

Or you could connect the wire to the terminals of a generator. The laws of magnetism will cause the generator - when it's turned - to charge the ends of the wire oppositely and a current will flow. But only while the generator is turning, because as soon as the electrons move down the wire they neutralise the charge, which must be replaced to keep the current flowing.

Answer 2

Electricity comes from many sources. Such as coal power plants, nuclear power plants and renewable energy sources such as wind, solar and hydroelectric dams.

There is a great EPA calculator to help you know which sources your electricity comes from and how clean they are:

If you live in Minneapolis, the four biggest sources of power are:

Nuclear: Mostly from the Monticello and Prairie Island Nuclear Reactors.

Coal: From the Big Lake Coal-fired Plant.

Wind: From the 11 Suburbs and farms to the West and South of the Metro.

Natural Gas: From the Calpine Natural Gas plant in Mankato.

These resources generally are consolidated into regional electric companies, which sell you the power they generate for a monthly bill, which you pay, so that the plant can buy more of its fuel source to make more power for you or maintain the machinery that generates the power, like the steam or wind-driven turbines.

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Electricity is generated by moving electrons through a media. A magnetic flux is required to generate this electricity. A magnetic field hits a medium i.e. gas or conductor. The electrons of this media will move on a close circuit. This movement is called current. A lightning is one sample of flux tru gas media. All those mentioned above on the first answer uses this magnetic flux.

Answer 3

The generator converts the mechanical energy into electrical current in a conductor by induction. This can either by circling the conductor through a magnetic field of by circling around a conductor.

Answer 4

it comes from the holes in the receeplacie

Answer 5

Electricity is electrons moving from one atom to the next.

Answer 6

The source of current is free flowing electrons.