Electronics Components — FET Terminals What are the three electrical terminals of a typical Field-Effect Transistor (FET)?

Introduction / Context:
A Field-Effect Transistor (FET) is a three-terminal semiconductor device controlled by electric field rather than junction current. Recognizing its terminal names is essential for reading circuit diagrams, using datasheets, and wiring devices such as JFETs and MOSFETs.

Given Data / Assumptions:

• We are discussing generic FETs (JFET/MOSFET) in basic electronics.
• Terminal nomenclature is standardized: Gate (control), Source (reference), Drain (output/current sink).
• Other terminal sets listed belong to different devices or are non-technical terms.

Concept / Approach:
In a FET, voltage applied at the Gate modulates the channel connecting Source to Drain, controlling current flow. This contrasts with Bipolar Junction Transistors (BJTs), which use Emitter, Base, and Collector. Rectifier diodes use Anode and Cathode only. The “Positive/Negative/Neutral” trio is a power distribution concept, not a transistor pinout.

Step-by-Step Solution:

Verification / Alternative check:
Consult any MOSFET datasheet or textbook figure labeling pins as G, D, S.

Why Other Options Are Wrong:

• Positive, Negative, Neutral: Line wiring, not transistor terminals.
• Anode, Cathode, Triode: Mixed/incorrect; triode is a vacuum tube type.
• Emitter, Base, Collector: That is a BJT, not a FET.

Common Pitfalls:
Mixing BJT and FET terminology because both are three-terminal devices; their control physics and names differ.

Final Answer:
Drain, Gate, Source