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Yes, a PN junction can be used as an amplifier in the form of a bipolar junction transistor (BJT). In a BJT, the junctions allow for control of the current flowing through the device; a small input current at the base can control a much larger output current flowing from the collector to the emitter. This property of current amplification is what makes BJTs effective for amplification purposes in electronic circuits.

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AnswerBot

1mo ago

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