You question is too vague.
In casual usage, the term electricity is applied to several related concepts that are better identified by more precise terms:
2007-06-26 01:06:42
·
answer #1
·
answered by Splishy 7
·
0⤊
0⤋
As has already been mentioned, your question is a little too vague for me to be able to answer definitively, but if I assume you are asking how the electricity is generated which we use in our homes, then most of it is produced by machines called generators. These are basically like electric motors working in reverse (in fact some hydroelectric power stations use machines which function as both motors and generators, although not at the same time). Something is used to turn a cylinder ("shaft"), which creates a rotating magnetic field which in turn causes electrical current to flow in wires wrapped in a coil inside the magnetic field. A motor does the reverse - current is applied to the machine causing the central cylinder to rotate.
The power to turn the shaft usually comes from a turbine, which can be powered by steam or other hot gases, or by water.
2007-06-26 08:22:19
·
answer #2
·
answered by Graham I 6
·
0⤊
0⤋
Electricity is produced by creating a difference in "potential" between two points, meaning a higher "negative" electrical charge or a higher ratio of electrons to protons than another point, then connecting them so there is a flow of electrons from the higher concentration to the lower concentration. There are many ways to make this happen, but that is how it is produced.
2007-06-30 03:25:33
·
answer #3
·
answered by Kevin S 7
·
0⤊
0⤋
In general it can be produced by a moving magnetic field with a coil, or by chemical reactions that cause the flow of electrons from one chemical to another (just basic, a bit more to it than that).
A magnetic field can be moved by water wheel (big ones are hydroelectric dams), steam (big nuke generators) or mechanical means (engines of every size burning many different fuels) and that also includes wind turbines.
Chemical batteries come in a huge number of forms and they are the real big news these days from, especially, the hybrid car industry.
2007-06-26 08:11:16
·
answer #4
·
answered by mike453683 5
·
0⤊
0⤋
lots of ways, but it all boils down to.. for the most part a turbine turning a coil around a magnet or vise versa causing the generation of electricity via the aligning and dis-aligning of electrons to produce a charge
2007-06-26 09:09:08
·
answer #5
·
answered by Anonymous
·
0⤊
0⤋
electricity is produced by moving electrons from one thing to another. This is usually caused by a form of energy.e.g.friction
2007-06-26 17:10:52
·
answer #6
·
answered by James R 1
·
0⤊
0⤋
Faraday's Law..voltage produced is equal to the rate at which we spin a conductor thru a magnetic field. The faster, or bigger the better. We use 60 times per sec, so we have 60Hz.
2007-06-26 08:36:45
·
answer #7
·
answered by ry0534 6
·
0⤊
0⤋
a physical movement or rotation is used to move a magnetic field at right angles to a conductor. (sounds more complicated than it is) This induces a voltage in the conductor (or wire). (electricity)
probably a few animations on a web site some where.
2007-06-27 16:27:13
·
answer #8
·
answered by Mark G 2
·
0⤊
0⤋
basically, by negatively charged streams of subatomic particles called electrons, which carry energy classified as electricity
they move along connecting paths due to potential difference: i.e. difference in the amount of charges between two places
2007-06-26 16:58:16
·
answer #9
·
answered by deepthi 1
·
0⤊
0⤋
its produced in many ways like hydro electricity and theremal electricity wind electricity and many many more
2007-06-26 08:06:11
·
answer #10
·
answered by Anonymous
·
0⤊
0⤋