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  4. In N P N transistor, if doping in base region is increased then collector current

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Q. In $N P N$ transistor, if doping in base region is increased then collector current

Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Number of holes in base region increases, hence recombination of electrons and holes also increases in this region. As a result, base current increases which in turn decreases the collector current.