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Force Vrs. Waves

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Posted by Timm A. Vanderelli on February 16, 2005 14:01:44 UTC

A wave consists of electromagnetic energy in a reversing field. Also known as alternating current, it flows basck and forth through a conducting medium.
For example: The power coming from a wall outlet is AC. It is continously alternating positive and negative at a certain rate per second (60 in the USA). Radio waves are the same thing, but reverse at a faster rate.
However, energy from a battery is a force- (Electromotive force) and is DC (direct current). A force is potential difference and flows only in one direction. It is not a wave at all.

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