Electromagnetic INDUCTION?
470161
The above answer is wrong, that equation is for the force on the wire!\n\nFor the magnitude of the induced EMF, you need to use BLV.\nThen Use V=IR to get the current.\n\nThe directions are a bit more tricky - you have to use the Left hand rule or the corkscrew rule to do this bit.\nJust remember than to obey Lenz's Law, the current must flow in such a way that the force on the wire given by BIL must oppose the direction of motion of the wire.\n\nSo, to put it simply, the curent has to be up in the diagram you drew above.\n\nBy the way, in order for current to flow, you must consider that this wire is part of a complete circuit.
270208
Intensity of current and magnetic permeability of the core.
712486
This is very complicated.\nMutual Induction means that the current in one circuit is getting into another circuit (and also the reverse), probably through transformers. And possibly from one wire to another nearby wire.\nThis can be a big problem in an Xray machine, if a power wire causes interference with a low voltage signal wire.  \nIf this is your problem, MOVE the WIRES APART more.
1023911
Electromagneticradiation
747869
This was an experimemt the US Navy conducted.  They attempted to "Cloak" a destroyer using magnetism.  How successful it was I am not sure.  There are several myths surrounding the experiment which depict gross outcomes of the experiment.
1045950
Electromagnetism and gravity. I have had success divining for water. Try it: Take a steel coat hanger and cut the long side in half. Make a cut on the other 2 sides  that same length. Bend until you have 2  L-shaped pieces. Stroke one side of each  L with a good magnet. Hold both pieces lightly as if you were holding 2 pop cans, tilting slightly away from you. As you walk over a water source, water table, well or buried pipe the two L's will move to point to each other. Use caution, this also works to locate underground live power lines.                        The REASON this works is that everything in our physical environment has an energy level. When there is a difference in density or materials, then resistance is created and this can be electromagnetic resistance. Underground water is electrically conductive and carries a faint electromagnetic charge that the magnetic "L's" tend to align with. I hope that explains it better, I'm glad you were able to find a good spot for your well.
731450
Faraday's law of Electromagnetic induction: refer http://en.wikipedia.org/wiki/Electromagnetic_induction\n\nThermodynamic processes: refer http://en.wikipedia.org/wiki/Thermodynamics
461167
Try these links\n\nhttp://en.wikipedia.org/wiki/Electric_force#The_electromagnetic_force\n\nhttp://en.wikipedia.org/wiki/Electrical_current\n\nMay the Electric Force be with you... always.
616514
Generating static electricity.
341660
Induction. \n\nWhen you wind a conductive wire into a coil and pass a current through it, you create a magentic field that extends from the coil.  Similarly, if you hold/move a coiled wire in a magnetic field, you "induce" a current flow in the coil.  With AC, there's no need for the coils to move relative to one another. (That's how a transformer works)  The toothbrush base has a coil in it, and the AC coming out of the wall goes through a coil in the base, induces current in the coil in the toothbrush, and that current charges a cell in the handle.\n\n Here are some neat links:\n\nhttp://www.energyquest.ca.gov/how_it_works/transformer.html\n\nhttp://micro.magnet.fsu.edu/electromag/java/faraday2/
93061
I didn't give it a thumbs down, and I think the answer is fine as far as it goes.  However, one problem that I noticed is that you have a circular definition.  You said electromagnetic waves are oscillating electric and magnetic waves.  I assume you meant to say electromagnetic waves are oscillating electric and magnetic *fields*, which is correct.
112062
Heat conductivity? electrical?
610327
electromagnetic or magnetic fields. It is easiest to research and to do the practical of. Just place the magnets and use iron filings to measure it
486492
THE EASIEST WAY TO DEMONSTRATE GENERATION OF ELECTRICITY IS TO GET SOME SMALL INSULATED COPPER WIRE AND WRAP IT AROUND A SMALL PILL BOTTLE,  AT LEAST 100 TURNS OR MORE (MORE IS BETTER) CLEAN THE INSULATION OFF THE ENDS OF THE WORE AND ATTATCH TO A VOLTMETER OR A MILLIAMETER.. INSERT A BAR MAGNET INTO THE PILL BOTTLE QUICKLY.  THE METER WILL GO ONE WAY WHEN YOU INSERT THE MAGNET AND WILL GO THE OTHER WAY WHEN YOU PULL THE MAGNET OUT.  THE FASTER YOU MOVE THE MAGNET THE MORE THE METER MOVEMENT.  HOPE THIS HELPS
220810
No equations but this may help.... when an electrical signal is travelling along, for example a piece of copper wire, there will be a field generated aroung the cable, similar to that of a magnet (remember at school we were taught about magnetic fields  with a magnet piece of paper and iron filings)\nWhen a second piece of wire is brought in close proximity to the 1st piece then it will cut the field , and a signal will be induced into the second piece of wire.This is called mutual induction. If a signal is now added to the second wire then the induced signal will either add or detract from it dependant on the phase at the time.... this will happen, also within the 1st piece of wire, as a field is now being generated by a signal supplied to the second wire.\nNow, by twisting the pairs together the field generated by the signal in the wire will be changing direction along its length (positive then negative then positive and so on)thus cancelling any induced signals (could be crosstalk in a speach circuit) out
329912
The magnetic field comes from the magnets that are in the generator. The magnets surround the wire coils. As the wire coils rotate, they pass by the magnets. A moving magnetic field (it's all relative, the magnetic field is still in this case) cause a current to be induced in the wire coils, thus producing electricity.\n\nI don't it has much to do with the earth's magnetic field.
69358
Power induction occurs when some material that can conduct electrical current is moved through a magnetic field.\n\nThe newest type of flashlight (sometimes called "shake flashlights") uses this principle. When a shake flashlight is shaken, a magnet slides back and forth through a copper wire coil. The electricity produced as a result is then stored in a capacitor (a capacitor is an electronics component that will store electrical energy) instead of a battery.\n\nPower induction can also occur between individual lines of a high-voltage power line system.