PY106 pre-class video for session 3 - The electric field

In this video, we motivate the idea of the electric field, which is one measure of the way a charged [...]object influences the region around it. It sounds abstract and complicated, until you realize that the electric field, E, is for charge what the gravitational field, g, is for mass. Note that g is often referred to as the acceleration due to gravity, but "gravitational field" is a fine name for it. The video covers an example, compares g and E a little, and then shows some field line pictures and equivalent field vector pictures. Don't be intimidated by those, though - just remember that whatever we did with g will work with E, too.

Tags: physics, py106, caspy106, metpy106

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