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Okay - it's going to be difficult to do an accurate diagram on here - so bear with me...

An electromagnet consists basically of a piece of metal surrounded by a coil of wire, which is connected to a power source. The simplest form would be an iron rod which has a piece of wire wrapped around it (about ten) coils should do it. The ends of the wire are attached to a 9 volt battery.

Ignore the dots in the following diagram - they're just to stop the spaces being removed by the forum !...

____|+ -|____

| ................... |

| ................... |

|___/\/\/\____|

It's a bit crude - but I think it's understandable. Basically, you connect the battery (+ -) with a continuous piece of wire. Wrap the wire around an iron rod - the '/\/\/\'. This induces a current in the rod, while the power is connected. Snakester1962 (Supervisor)

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