Exercise: Transistors And Applications

Questions for: Transistors And Applications

In order for feedback oscillators to have any practical value, the gain has to be
A:
< 1
B:
self-adjusting
C:
stabilized
D:
nonlinear
Answer: B
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Often a common-collector will be the last stage before the load; the main function of this stage is to
A:
provide voltage gain
B:
buffer the voltage amplifiers from the low-resistance load
C:
provide phase inversion
D:
provide a high-frequency path to improve the frequency response
Answer: B
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Which of the following conditions are needed to properly bias an npn transistor amplifier?
A:
Forward bias the base/emitter junction and reverse bias the base/collector junction.
B:
Forward bias the collector/base junction and reverse bias the emitter/base junction.
C:
Apply a positive voltage on the n-type material and a negative voltage on the p-type material.
D:
Apply a large voltage on the base.
Answer: A
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Three different points are shown on a dc load line. The upper point represents the
A:
minimum current gain
B:
quiescent point
C:
saturation point
D:
cutoff point
Answer: C
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The depletion-mode MOSFET
A:
can operate with only positive gate voltages
B:
can operate with only negative gate voltages
C:
cannot operate in the ohmic region
D:
can operate with positive as well as negative gate voltages
Answer: D
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