Comprehensive 60 Questions and Verified
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_______ is the ratio of Ic/Ie - CORRECT ANSWER: Alpha
A cutoff transistor acts like it's: - CORRECT ANSWER: open
A negative potential with respect to the cathode on the control grid will: - CORRECT
ANSWER: repel electrons
How many electrodes does a pentode have? - CORRECT ANSWER: 5
How many electrodes does a tetrode have? - CORRECT ANSWER: 4
In a ____________ amplifier, when the emitter voltage increases~ the emitter current
decreases. - CORRECT ANSWER: common base
In a _____________ amplifier, when base voltage decreases~ output voltage
decreases. - CORRECT ANSWER: common collector
In a _____________ amplifier, when emitter current increases~ the collector current
increases. - CORRECT ANSWER: common emitter
In a _____________ amplifier, when the base voltage increases~ the emitter current
increases. - CORRECT ANSWER: common collector
, In a _____________ amplifier, when the emitter voltage increases~ the emitter to base
forward bias decreases. - CORRECT ANSWER: common base
In a ______________ amplifier, when the base voltage increases~ the emitter current
increases. - CORRECT ANSWER: common emitter
In a NPN transistor, the base DC bias voltage must be: - CORRECT ANSWER: positive
compared to the emitter
In a PNP transistor, the base DC bias voltage must be: - CORRECT ANSWER: negative
compared to the emitter
In a RC coupled transistor amplifier, what is the result of a high VPP input signal? Stage
gains ______, total gain ______, output signal _________ - CORRECT ANSWER: low,
low, distorted
In a RC coupled transistor amplifier, what is the result of a low frequency input signal?
Stage gains ______, total gain ______, output signal _________ - CORRECT
ANSWER: good, low, undistorted
In an operating NPN transistor, which PN junction is forward biased and which PN
junction is reverse biased? - CORRECT ANSWER: forward EB, reverse CB
In an operating PNP transistor, which PN junction is forward biased and which PN
junction is reversed biased? - CORRECT ANSWER: forward Emitter Base, reverse
Collector Base
In RC coupled amplifiers, normal operation is verified by comparing measured and
calculated: - CORRECT ANSWER: total current voltage gain