Why there is no current flowsin a reverse-biased arrangement?? Once the polarity of the external voltage is the same as that of the junction voltage, electrons from the P-TYPE semiconductor will flow out and be attracted towards the positive terminal of the battery and then to the p-type semiconductor to fill the positively charged holes in the P-region. Likewise holes flow from p-type to n-type. However everything here will stop until an equilibrium between charge carriers and the repelling depletion is reached. So before that ARENT THE FLOW OF CHARGE CARRIERS NOT CONSIDERED AS ELECTRIC CURRENT ??? from the graph, there is a small curent !!!!