Surface voltages can move charges around semiconductors {charge coupling}|. Semiconductors have capacitance. Charge moves between capacitors at each clock pulse. Solid-state TV cameras and memory circuits use charge coupling. Semiconductors {charge coupled device} (CCD) can move free electric charges from one storage element to another, by externally changing voltage. Charge can vary by varying voltage and capacitance. Image sensors and computer memories use CCDs.
Physical Sciences>Physics>Electromagnetism>Charge
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Date Modified: 2022.0224