Concept:The diode schematic symbol indicates the direction of conventional forward current flow with an arrow/triangle.
Formula:$$\text{Triangle (Base)} = \text{Anode (P-type)}, \quad \text{Vertical Line (Bar)} = \text{Cathode (N-type)}$$
Solution:- The triangle represents the Anode (P-type region), indicating the direction in which conventional current easily flows.
- The vertical barrier line represents the Cathode (N-type region), which blocks conventional current trying to flow in reverse.
Why other options are incorrect:- Option A: Inverts the correct anode and cathode assignments.
- Option C: Emitter and collector are terminals of a bipolar junction transistor (BJT).
- Option D: Gate and source are terminals of a field-effect transistor (FET).
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