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    				| 1. | 
                                    pn junction of a diode | 
                            
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Answer»  ThePN junctionregion of aJunction Diodehas the following important characteristics: Semiconductors contain two types of mobile charge carriers, “Holes” and “Electrons”. ... A semiconductor may be doped with acceptor impurities such as Boron (P-type doping), so that it contains mobile charges which are mainly holes.  | 
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