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Question:

We are moving a magnetic bar through a coil of copper wire for science fair. Will it generate electricity?

We need help with our science fair project. We are using the magnetized main bar of a weight machine to generate electricity. We have plenty of copper wire, and we are coiling it up and attaching it to both ends of a battery to make a complete circuit. All of our background research says wire in a complete circuit with a magnet run through generates electricity. However our first few attempts have failed miserably and our due dates are fast approaching. If it won‘t work, please give us details on how to possibly make the project work. Thank you very much.

Answer:

Yes, i've done it. search youtube for an electric generator. basically, it is the north and south poles passing that attract and push away the charge from the electrons. You have to spin the magnet within coil so that the field cuts through the wire. Use magnet wire from radioshack (strip the ends to power stuff like leds) to reduce power loss. The magnets should be high powered (from radioshack), and the closer you can get the magnets to the wire, the closer the field gets to the wire and cuts it, generating more electricity. This is also the same principle of a windmill.
super glue is ok but i would go to ur nearest hbby lobby store and get this glue its likes -------3000. its superhard glue infact i would use elmers school glue b4 superglue-it may not fasten as fast but i find it works better
Stick it with SUPER GLUE. --BUT--- DONT use it. Better keep it in the show case. .
You must provide the energy in to the system. You must move the magnetized bar through the coil to generate electricity, then the power you are putting in is the energy needing to push the magnet in and out of the coil. It will be difficult to generate much power that way as your ability to move the magnet in that method is probably limited. Also, the ends of the coil that you are using should not be hooked up to a power source, rather that would be the point where you would attempt to measure voltage/current. I may not have the picture of what you are doing quite right in my mind. I believe you should try and connect the magnet to a wheel that will spin inside of your copper coil. Then, even though you wouldn't want to connect it to a motor, you could hand crank that sucker around a lot faster (inputting more energy) than you can if you are simply inserting it into the coil. Good Luck
First of all you are shorting the battery through the coils winding. You are trying to make current flow by moving a magnets flux lines through a conductor so you dont need a battery to do this. Instead solder the opposite ends of the copper wire to the positive and negative terminals of a flashlight bulb. Now move the magnet through the coil of copper wire. The movement should produce enough current in the copper conductor to illuminate the flashlight bulb somewhat. Edit addition: Put the battery away. you will not need it at all for this particular project.

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