Transistors and application interview question

1.
The gate-source junction of a JFET must be ________ for proper linear operation.
A. forward-biased
B. reverse-biased
C. either forward-biased or reverse-biased
D. neutral
Answer: Option B

Explanation:

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2.
The ___ oscillator takes advantage of the piezoelectric effect.
A. crystal
B. Hartley
C. Colpitts
D. RC
Answer: Option A

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3.
In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the product of Av × B equals_______.
A. reduced, one
B. reduced, less than one
C. increased, more than one
D. increased, much greater than one
Answer: Option A

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4.
VCE approximately equals _______ when a transistor is in saturation.
A. VCC
B. VB
C. 0.2 V
D. 0.7 V
Answer: Option C

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5.
The power gain (Ap) of any transistor amplifier circuit equals the ___________.
A. current gain squared
B. current gain times the voltage gain
C. voltage gain times the output resistance
D. current gain plus the voltage gain
Answer: Option B

Explanation:

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