In electronic circuits a transistor commonly serves as
Pick an answer
Correct!
Not quite. The correct answer is highlighted.
Correct answer to question 33 (Electronics Information): a switch or an amplifier
Method
A small current or voltage at one terminal controls a much larger one between the other two, which lets a transistor either amplify a signal or switch a load on and off.
Updated: November 2026
Raise your AFQT scoreFree for iPhone and Android
