Exercise: Fet Amplifiers

Questions for: Fet Amplifiers

Referring to the transfer characteristics shown below, calculate gm at VGSQ = –1 V.

A:
2 mS
B:
3 mS
C:
4 mS
D:
5 mS
Answer: B
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MOSFET digital switching is used to produce which digital gates?
A:
inverters
B:
NOR gates
C:
NAND gates
D:
all of the above
Answer: D
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When VGS = 0.5 Vp gm is ________ the maximum value.
A:
one-fourth
B:
one-half
C:
three-fourths
D:
Answer: B
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MOSFETs make better power switches than BJTs because they have
A:
lower turn-off times.
B:
lower on-state resistance.
C:
a positive temperature coefficient.
D:
all of the above
Answer: D
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What is the typical value for the input impedance Zi for JFETs?
A:
100 k
B:
1 M
C:
10 M
D:
1000 M
Answer: D
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