LUH Flashcards
transistor configuration that has the highest input resistance
common collector
The advantage of common emitter is __________
high voltage gain
The current in FET flows between ________ terminals
Drain and Source
For operation as an amplifier, the base of an NPN transistor must be
negative with respect to the emitter
The Alpha of a transistor is its current gain at
Common base
For the transistor, the arrow in the graphic symbol defines the direction of ______ through the device
emitter conventional current flow
The three regions in a bipolar junction transistor is separated by
two PN junctions
Identify the process where a smaller signal is used to produce a larger identical signal
amplification
The flow of electron in an NPN transistor when used in electronic circuit is from
emitter to collector
In a common collector amplifier, the input resistance is
high
What are the terminals of FET
Source, gate and drain
For the operation as an amplifier, the base of a PNP transistor must be
negative with respect to the emitter
In common base amplifier, the voltage gain is
high
In semiconductor technology, the characteristics of a transistor in cut-off refers to a condition when
no current flows from emitter to collector
The term used to express the ratio change in dc collector current to a change in base current in a bipolar transistor is
Beta
The BJT has how many PN Junctions
Three
Which are the three terminals of a bipolar junction transistor
base, collector and emitter
The Beta of a transistor is its current gain at
common emitter
A two junction transistor whose construction takes the form of a PNP or an NPN. Such device uses both electron and hole conduction and is current-driven
bipolar transistor
When made to operate in cut-off and saturation, the transistor is acting like
a switch
Which one is a unipolar device
FET
The voltage across the forward-biased BE Junction of a silicon BJT is
0.7 v
What bias condition must exist for a transistor to operate in cut-off
Forward-Reverse Bias
The value of VCE in cut-off is
equal to VCC
In the dc mode, the levels of IC are related by the quantity called
B
How many terminals does the FET transistor have
3
The Gamma of a transistor is its current gain at
common collector
In the dc mode, the levels of IC and IE are related by the quantity called
a
The region in a transistor that heavily doped is called
emitter
The region in a bipolar transistor that is lightly doped and very thin
base
