Magnetism

Today for science, I learned about magnetism, and it's relation to electricity. I also built some pretty awesome experiments, which I'm going to write about now.

The first one I made was a simple experiment about how magnetic fields could be created with electricity. A guy named Hans Christian Oersted is credited with inventing it. Basically, I am turning a wire into an electromagnet, which the compass is attracted to. You can see a video of it below.

My second experiment was creating a Galvanometer.

This is essentially a device that detects electricity. I made this by wrapping over 2 meters of wire around a compass. When a charge was applied, the needle would swing violently to one side. You can see some pictures of it below.

My third and final experiment was creating a model based off of an experiment of Michael Faraday. I wound a LOT of wire around a bar magnet, and then applied a charge to it.  A nearby compass would swing around and point at it. I had created my own electromagnet. My electromagnet behaves just like a regular one, but I can switch it on and off like a light. You can see a few pictures of it below.