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The scientific question being answered is: how are electricity and magnetism related?
From other experiment using the hand cranked generator, we know that magnets can be used to generate electricity, but can electricity be used to create magnets? The answer is yes! If you come to our booth you will see how electricity can be used to make a magnet “float” down a copper tube.
We know that a magnet can be used to generate electricity by moving the magnet past a coil. The relationship between electricity and magnetism is actually much deeper: whenever electricity flows, a magnetic field is created. We use this phenomenon in electromagnets. The magnetic field can be used to interact with magnets to create motion (through repulsion or attraction). In fact, this is how all electric motors operate.The copper tube can be thought of as several coils connected together. As the magnet is dropped through the tube, the magnetic field through the copper tube begins to change, and current is induced. The magnetic field caused by the induced current causes the magnet to slow down as it falls through the tube.
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