VCR programmability VCR programmability allows for setting the VCR to tape television events through the use of an internal timer. A device that converts a video signal into an electrical image. Cables designed specifically for sending video signals between various components. Voltage exists between two points when one point has an excess of electrons in relation to the other point. If you connect a piece of wire between a battery's positive and negative terminals, voltage pushes the electrons through the wire.
Electrical current is the electron charge in motion.
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