Reverse bias is a condition in semiconductor junctions where the voltage is applied in such a way that it widens the depletion region and prevents current from flowing through the junction. This state is crucial for the operation of various electronic components, as it allows devices to control the flow of current effectively. In p-n junctions, reverse bias ensures that electrons and holes are pushed away from the junction, while in transistors, it helps manage the switching and amplification of signals.
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