This powerful electromagnet lifts over 7 lbs. when connected to a 6-volt battery! Experiment with the magnetic lift by trying one coil vs. two and by using different battery sizes. Includes electromagnet and hooked lift plate. You provide a 6-volt battery and connecting wire. Grades 4-12.
The following questions might help you come up with a good science fair project: How do different batteries and different sizes of connecting wire affect magnetic strength? Does the magnetic field change at all? (Use iron filings.)
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