Induction and noise are disruptions in an electrical circuit
Fields (Induction) and Noise
Fields (Induction)
Two other basic theories are necessary for understanding television equipment. The first of these is fields (induction). Any electrical circuit that has a changing flow of electrons will create an electromagnetic field around itself. For example, if you turned a flashlight on and off several times, the flow of electrons would be starting and stopping and a small electromagnetic field would be created. However, if you left the flashlight on, the flow of electrons would be continuous and unchanging and there would not be an electromagnetic field. Since the flashlight uses very small amounts of electricity, its field would be very small — ...
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