Diodes on Power Electronics related Questions and Answers

Question :   Which of the following is true in case of an unbiased p-n junction diode? 1. Diffusion does not take place 2. Diffusion of electrons & holes goes on infinitely 3. There is zero electrical potential across the junctions 4. Charges establish an electric field across the junctions Answer :   4 - Charges establish an electric field across the junctions