Before revision: When a semiconductor device is reverse biased it should not conduct any current at all, however, due to increased barrier potential, the free electrons on p side are dragged towards positive terminal of the battery , while holes on n side are dragged towards negative terminal of the battery .
After revision: When a semiconductor device is reverse biased it should not conduct any current at all, however, due to increased barrier potential, the free electrons on p side are dragged to the battery's positive terminal , while holes on n side are dragged to the battery's negative terminalthethe .