What is the function of base region of a transistor? Why is this region made thin and slightly doped?
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In a transistor, the base region brings an interaction between emitter and collector. The base is kept thin and slightly doped so that, when emitter of transistor is forward biased, the less number of electron-hole combination takes place in base region and majorityof charge carriers going from emitter towards base, pass over to collector. As a result of it , the collector current becomes quite good in comparison to base current.
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