Exercise: Transistors And Applications

Questions for: Transistors And Applications

Changing ________ can control the voltage gain of a common-source amplifier.
A:
the input voltage
B:
gm
C:
VDD
D:
RS
Answer: B
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The gain of a BJT is called _______ and the gain of a JFET is called _______.
A:
beta, alpha
B:
transconductance, beta
C:
beta, transconductance
D:
transconductance, transconductance
Answer: C
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Removing a bypass capacitor from a common-emitter amplifier circuit will _________ voltage gain and ________ input resistance.
A:
increase, decrease
B:
decrease, increase
C:
decrease, decrease
D:
increase, increase
Answer: B
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The collector current in a class A amplifier flows for ________ of the ac input signal.
A:
< 180°
B:
180°
C:
< 360°
D:
360°
Answer: D
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The ac input resistance (Rin) of a voltage-divider biased common-emitter amplifier consists of ____________.
A:
fba17_1004a1.gif
B:
fba17_1004b1.gif
C:
fba17_1004c1.gif
D:
fba17_1004d1.gif
Answer: B
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