Monday, April 15, 2013

Magnetism Recourse

This video combines two different things that we have learned about; magnetism and induction. Using the example of a flashlight that works without batteries, it explains how you can create enough of a current using only a magnet and a wire to power this flashlight. You do this by shaking the magnet up and down, so that the electrons in the wire create a current that powers the bulb.

1 comment:

  1. This video has really great visual aids. I like the brief history, followed by a modern example. Like you said, it took two parts we've studied and combined them. We both choose videos (form youtube) but mine was a lot more basic. I just wonder how much energy is produced by shaking?

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