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Transistors and Applications
Comments
Question
The ac input resistance (
R
in
) of a voltage-divider biased common-emitter amplifier consists of ____________.
Options
A.
B.
C.
D.
Correct Answer
Transistors and Applications problems
Search Results
1. The ___ oscillator takes advantage of the
piezoelectric effect
.
Options
A. crystal
B. Hartley
C. Colpitts
D.
RC
Show Answer
Scratch Pad
Discuss
Correct Answer: crystal
2. The collector current in a class A amplifier flows for ________ of the ac input signal.
Options
A. < 180°
B. 180°
C. < 360°
D. 360°
Show Answer
Scratch Pad
Discuss
Correct Answer: 360°
3. The power gain (
A
p
) of any transistor amplifier circuit equals the ___________.
Options
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
Show Answer
Scratch Pad
Discuss
Correct Answer: current gain times the voltage gain
4. If the drain, source, and channel of a MOSFET are all a
p
-type material, and it operates in both modes, this is an
n
-channel D-MOSFET.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
5.
The maximum peak-to-peak output voltage in the given circuit is 15 V.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
6.
V
CE
approximately equals _______ when a transistor is in saturation.
Options
A.
V
CC
B.
V
B
C. 0.2 V
D. 0.7 V
Show Answer
Scratch Pad
Discuss
Correct Answer: 0.2 V
7. A(n) ___ has a conductive channel only when it is biased properly.
Options
A.
p
-channel JFET
B.
n
-channel D-MOSFET
C.
p
-channel D-MOSFET
D.
n
-channel E-MOSFET
Show Answer
Scratch Pad
Discuss
Correct Answer:
n
-channel E-MOSFET
8. Changing ________ can control the voltage gain of a common-source amplifier.
Options
A. the input voltage
B.
g
m
C.
V
DD
D.
R
S
Show Answer
Scratch Pad
Discuss
Correct Answer:
g
m
9. Removing a bypass capacitor from a common-emitter amplifier circuit will _________ voltage gain and ________ input resistance.
Options
A. increase, decrease
B. decrease, increase
C. decrease, decrease
D. increase, increase
Show Answer
Scratch Pad
Discuss
Correct Answer: decrease, increase
10. A _______________ JFET amplifier provides a voltage gain of less than one.
Options
A. common-source
B. common-channel
C. common-drain
D. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: common-drain
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