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To do a investigation in which to find out if increasing the number of turns on the coil will increase the magnetism.
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| Submitted: Tue Sep 23 2003
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Aim To do a investigation in which to find out if increasing the number of turns on the coil will increase the magnetism Predication Magnetic field is an area of magnetism around a magnet, which is made of magnetic field lines. You can see the shape of the field lines if you put some paper over a magnet and sprinkle some iron filings onto the paper. If you put a compass on a field line then it points in the direction of the line. An electromagnet is a coil of wire with electricity flowing through it. This electric current turns the coil into a magnet with a magnetic field of exactly the same shape as a bar magnet. The good thing about an electromagnet is that you can turn it off if you switch off the current flowing through it, unlike a bar magnet. If you want to make the...
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