If an external potential of V volts is applied across the p – n junction such that the positive terminal is connected to the n- type material and the negative terminal is connected to the p -type material as shown in Fig. 1.13 , the number of uncovered positive ions in the depletion region of the n- type material will increase due to the large number of free electrons drawn to the positive potential of the applied voltage. For similar reasons, the number of uncovered negative ions will increase in the p- type material. The net effect, therefore, is a
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