Exercise: Fet Amplifiers

Questions for: Fet Amplifiers

The input and output signals are 180º out of phase in a ________ configuration.
A:
source-follower
B:
common-gate
C:
common-drain
D:
voltage-divider
Answer: D
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________ is a required step in order to calculate Zo.
A:
Setting IG equal to zero
B:
Setting Vi equal to zero
C:
Setting ID equal to IDSS
D:
None of the above
Answer: B
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A ________ configuration has a voltage gain less than 1.
A:
fixed-bias
B:
self-bias
C:
source-follower
D:
voltage-divider
Answer: C
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The value of gm is at its maximum gm0 at VGS equal to ________ and zero at VGS equal to ________.
A:
0 V,
B:
, 0 V
C:
0.5, 0.3
D:
0.3 , 0.5
Answer: A
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The range of input impedance Zi for MOSFETs is ________.
A:
1 k–10 k
B:
100 k–1 M
C:
10 M–100 M
D:
1012 to 1015
Answer: D
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