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Identify the correct set of terminal names for a power BJT (bipolar junction transistor).

Difficulty: Easy

Correct Answer: Emitter, Base, Collector

Explanation:


Introduction / Context:
This question tests core semiconductor device knowledge by asking for the correct terminal names of a power BJT. Recognizing device terminals is essential to wiring, biasing, and analyzing circuits in analog electronics and power electronics.


Given Data / Assumptions:

  • Device type: BJT (bipolar junction transistor).
  • Power BJT still follows the same terminal naming as a small-signal BJT.
  • We assume standard device nomenclature used in textbooks and datasheets.


Concept / Approach:
A BJT has three terminals: emitter (E), base (B), and collector (C). In contrast, MOSFETs use source (S), gate (G), and drain (D). JFETs use source, gate, and drain as well. Therefore, the only correct naming for a BJT is E, B, and C.


Step-by-Step Solution:

Identify device type: BJT → terminals are E, B, C.Cross-check alternatives: Any mention of Source or Drain refers to FETs, not BJTs.Hence the correct set is Emitter, Base, Collector.


Verification / Alternative check:

Review a BJT symbol: the arrow on the emitter (NPN pointing out, PNP pointing in) confirms the presence of an emitter; the other two terminals are base and collector.


Why Other Options Are Wrong:

Any option containing Source or Drain corresponds to FET devices, not BJTs.


Common Pitfalls:

Confusing BJTs with MOSFETs or JFETs due to similar three-terminal appearance in schematics.


Final Answer:

Emitter, Base, Collector
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