Answer: Triode (linear/ohmic) region.
- A Saturation region in general practice
- B Subthreshold region as frequently described
- C Triode (linear/ohmic) region
- D Breakdown region in most textbook accounts
Correct answer: C. Triode (linear/ohmic) region
Explanation: Triode (linear) region: V<sub>DS</sub> < V<sub>GS</sub> - V<sub>th</sub>. Channel resistance controlled by V<sub>GS</sub>. MOSFET acts as voltage-controlled resistor.
Conductors have overlapping bands, semiconductors have a small energy gap that can be bridged by heat or doping, and insulators have a large gap that blocks conduction.
Concept context
Band theory, p-n junction, diodes, transistors, logic gates, and integrated circuits.