Thermal runaway is not possible in FET because as the temperature of FET increases_________________?
Correct answer: A. the mobility decreases
- A. the mobility decreases
- B. the transconductance increases
- C. the drain current increases
- D. none of the above
Explanation
As FET temperature rises, carrier mobility decreases, reducing drain current for a given gate bias. This negative feedback prevents the positive-feedback process responsible for thermal runaway.
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