A transistor does not require heating of its base, emitter, or collector for normal operation. A BJT operates through the proper biasing of its emitter-base and collector-base junctions. In an NPN transistor operating in the active region, the emitter-base junction is forward biased while the collector-base junction is reverse biased. The resulting movement of charge carriers allows a small base current to control a much larger collector current.
Operation of a transistor requires ______.
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Question context
This question is part of 📡 Electronics and Communication Engineering (ECE) within the broader 🛠️ Engineering Essentials subject and appears in the PTS Pakistan Testing Service preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.