Question: a) What is a Bipolar junction transistor (2mks) b) Briefly describe the operation of N-P-N transistor (6mks) c) Consider a BJT with emitter doping

a) "What is a Bipolar junction transistor (2mks) b) Briefly describe the

a) "What is a Bipolar junction transistor (2mks) b) Briefly describe the operation of N-P-N transistor (6mks) c) Consider a BJT with emitter doping of 108 cm and base doping of 10 cm. The quasi- neutral region width in the emitter is 1um and 0.2 m in the base. Take n =1000cm/V.S and up =300cm/V.S The minority carrier life time in the base is 10nS. The BJT when it is biased in the forward active mode. Calculate the following parameters of the BJT i) ii) the emitter efficiency The base transport factor (6mks) (6mks)

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