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Types of semiconductors

                                                              what is semiconductors? is a conductor whose conductivity lies between insulator and conductor. Types of semiconductors intrinsic extrensic      Intrisic semiconductors is a conductors which are in pure form without any impurities. eg: silicon and germinium Notes numer of hole = number of electron majority charge carrier: Both hole and electron net charge is always zero Extrinsic semiconductuors is a semiconductors which are formed due to adding impurities to a conductors and it has two types and they are Ptype Ntype   Ptype is formed by adding trivalent impurities or impurity atom which has three valence electrons. eg; Boron, Gallium,Indiumand aluminium. Notes majority charge carrier is hole number of hole > number of electron Ntype is form...