Why is the space charge region called depletion region

1.	Why is the space charge region called depletion region
Answer» The depletion region is also called as depletion zone, depletion LAYER, space charge region, or space charge layer. The depletion region acts LIKE a wall between p-type and n-type SEMICONDUCTOR and prevents further FLOW of FREE electrons and holes.

Answer»

The depletion region is also called as depletion zone, depletion LAYER, space charge region, or space charge layer. The depletion region acts LIKE a wall between p-type and n-type SEMICONDUCTOR and prevents further FLOW of FREE electrons and holes.

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Why is the space charge region called depletion region

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