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Definition of "Hypermedia" |
Hypermedia an extension to hypertext providing multimedia facilities, such as those handling sound and video. / Polarity is positive and negative is present in every electrical circuit. Electrons flow from the negative pole to the positive pole. In a direct current circuit, one pole is always negative, the other pole is always positive and the electrons flow in one direction only. In an alternating current circuit the two poles alternate between negative and positive and the direction of the electron flow reverses. |
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