Exercise: Bjt Amplifiers

Questions for: Bjt Amplifiers

One junction of an operating transistor is ________ and the other one is ________.
A:
forward-biased, forward-biased
B:
forward-biased, reverse-biased
C:
reverse-biased, reverse-biased
D:
None of the above
Answer: B
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The ac voltage gain of a Darlington connection is about ________.
A:
0
B:
1
C:
D
D:
None of the above
Answer: B
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Ideally, the changes in the load resistor or the source resistor should have ________ effect on all the parameters of the two-port model.
A:
a great
B:
a moderate
C:
no
D:
None of the above
Answer: C
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In a common-base configuration, the input and output voltages are ________ and the output and input currents are ________.
A:
180º out of phase, 180º out of phase
B:
180º out of phase, in phase
C:
in phase,180º out of phase
D:
in phase, in phase
Answer: D
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The ________ the source resistance, the ________ the overall gain of an amplifier.
A:
larger, higher
B:
larger, lower
C:
lower, lower
D:
None of the above
Answer: B
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