The base of a transistor is lightly doped. Explain why?
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The base of a transistor is lightly doped. Explain why?
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In a transistor, most carriers from the emitter region move towards the collector region through the base. If the base is made thick and highly doped, most carriers will combine with the other carriers within the base, and only a few are collected by the collector, leading to a small output collector current. Thus, to have a large output collector current, the base is made thin and lightly doped.

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