Exercise: Fet Amplifiers

Questions for: Fet Amplifiers

What is the range of gm for JFETs?
A:
1 S to 10 S
B:
100 S to 1000 S
C:
1000 S to 5000 S
D:
10000 S to 100000 S
Answer: C
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CMOS digital switches use
A:
n-channel and p-channel D-MOSFETs in series.
B:
n-channel and p-channel D-MOSFETs in parallel.
C:
n-channel and p-channel E-MOSFETs in series.
D:
n-channel and p-channel E-MOSFETs in parallel.
Answer: C
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FET amplifiers provide ________.
A:
excellent voltage gain
B:
high input impedance
C:
low power consumption
D:
All of the above
Answer: D
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Referring to this figure, calculate Zi for yos = 20 S. Assume VGSQ = −2.2V.

A:
300.2
B:
330.4
C:
340.5
D:
350.0
Answer: B
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Determine the value for RD if the ac gain is 8.

A:
1.51 k
B:
1.65 k
C:
1.85 k
D:
2.08 k
Answer: B
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