What is a polarized diode?
Answer:
Well all diodes are actually polarized. The word just adds emphasis to the fact that they are. A diode works as a PN-junction where charge accumulates where the P and N cross one another at a region called the depletion region. The result is a flow of current in one direction, but not the other. This is why the device is "polarized" just as an electrolytic capacitor is polarized.
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