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Is Electrical magnetic Energy Renewable or Non-renewable?
I have to do this project in science... So answer the question please.
All I was asked was to explain if Electrical Energy is renewable or non-renewable.... Well, we're working on Potential energy, chemical energy, thermal energy, etc.
4 Answers
- 1 decade ago
I suppose by "electric magnetic energy you are referring to mechanical motion created by magnetic attraction initiated by electrical energy IE the electric motor.
When you see the words "electricity" and "renewable" you need to begin to question how the electricity is being produced. An electric car can be non polluting at its operation but when we tract down the source of its power it can be from a coal plant that is both polluting and non renewable. It could be from the sun which it both renewable and non polluting or it might be from wood which is renewable but polluting.
As an aside there is a field of interest called "magnetic motors" which attempts to produce the effects of a motor only using magnetics and without the input of electricity from another source. These fall under the area of "zero point energy" and attempt to foil the the laws of conservation of energy and produce more energy than they consume. Another name is perpetual motion machines.
When we say that an energy source is "renewable" the energy is being replenished usually by the sun or heat and gravity of the Earth. They are not "perpetual" in the same sense. There is a very good discussion of "magnetic motors" and why they don't work in the "museum of unworkable devices:" http://www.lhup.edu/~dsimanek/museum/unwork.htm
- Anonymous1 decade ago
Read your text book and do your own home work. Or at least explain what you mean by Electrical magnetic energy. If you mean Generators or dynamos both need a power source to turn them. And the source of that power could be renewable or non-renewable.
- 1 decade ago
I do believe that there is a "magic" position for magnets to be set that they will power a drum to rotate. Once that "magic" position is found, using coated copper wire in coils in a similar pattern as a vehicle alternator would produce a noticeable amount of electricity. Once that is accomplished, use an amplified computer chip designed for increasing the output of energy.
I have tried to do this. Finding the proper position of magnets is very difficult. Magnetic fields can be unpredictable and change as it is introduced to any external metallic or magnetic object. Rubber can change the magnetic field as well because it blocks the magnetic field. Aluminum and copper causes different reactions to the magnetic fields as well.
In short, this subject is a hit and miss trial. I hope that one day some one can find the "magic".