Science Buddies: "Ask an Expert"

I have ZERO electronic knowledge.
Probably on wrong site but I have posted all over the net without success.

When I ask my question, I just get asked qualifying questions about which I have no clue.

All I want to do is RAPIDLY reverse the polarity of two electromagets.

Magnets could be 2 or 3 inches long. I have access to a wall socket (ik) but have no idea about current, inductance, et cetera.

Anyone adise what I require to purchase?

Hello TheFamousCash,

Are you working on this for a science fair project? If so, what is the hypothesis you are trying to test? These forums are dedicated to helping students, parents, and teachers with their science fair projects. If this is for a science fair project, we will need additional details about your project in order to effectively help you.