Exercise: Fet Amplifiers

Questions for: Fet Amplifiers

Referring to this figure, calculate Av if yos = 20 S.

A:
–3.48
B:
–3.56
C:
–3.62
D:
–4.02
Answer: C
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The E-MOSFET is quite popular in ________ applications.
A:
digital circuitry
B:
high-frequency
C:
buffering
D:
All of the above
Answer: D
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For an FET small-signal amplifier, one could go about troubleshooting a circuit by ________.
A:
viewing the circuit board for poor solder joints
B:
using a dc meter
C:
applying a test ac signal
D:
All of the above
Answer: D
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E-MOSFETs are generally used in switching applications because
A:
of their very low input capacitance.
B:
of their threshold characteristic (VGS(th)).
C:
of their high-frequency response capabilities.
D:
of their power handling.
Answer: B
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A JFET cascade amplifier employs
A:
2 common-gate amplifiers.
B:
2 common-source amplifiers.
C:
1 common-gate and 1 common-source amplifier.
D:
1 common-gate and 1 common-drain amplifier.
Answer: C
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