Q. In small-signal analysis, what is the small-signal model of a BJT primarily used for?
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A.
To analyze large signal behavior
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B.
To simplify circuit analysis
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C.
To determine thermal characteristics
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D.
To measure frequency response
Solution
The small-signal model of a BJT simplifies circuit analysis by allowing linear approximations of the transistor's behavior.
Correct Answer:
B
— To simplify circuit analysis
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Q. What is the primary function of a MOSFET?
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A.
To amplify signals
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B.
To switch electronic signals
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C.
To rectify AC signals
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D.
To store energy
Solution
MOSFETs are primarily used as electronic switches in various applications due to their high efficiency.
Correct Answer:
B
— To switch electronic signals
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Q. Which type of FET is normally on when no gate voltage is applied?
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A.
N-channel JFET
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B.
P-channel JFET
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C.
N-channel MOSFET
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D.
P-channel MOSFET
Solution
A P-channel JFET is normally on when no gate voltage is applied, as it conducts with a negative gate-source voltage.
Correct Answer:
B
— P-channel JFET
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