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Worksheetstransistor3
Total questions: 26
Worksheet time: 16mins
If the transistor operates such that it is either in the saturation or cut-off region, it is operating as
a filter
a switch
a signal amplifier
an emitter follower
One function of the transistor is to_____________?
rectify
amplify
limit
control
What is the type of the transistor shown?
PNP
NPN
BJT
What is emitter current Ie of transistor that its Ic=100mA and Ib=100uA?
100.1 mA
1000mA
100 mA
The purpose of biasing is to establish a ______
amplification
power source
load line
Q-point
A transistor is essentially what?
An output device
An electronic switch
A deivce that limits the flow of power
In which region, the transistor operates.....?
Saturation Region
Cut-off Region
Active Region
None of the above
A transistor is a …………… operated device
Voltage
Both Voltage and Current
Current
None of the Above
C-B Reverse Bias
C-B Reverse Bias
C-B Forward Bias
C-E Forward Bias
Diagram shows a transistor circuit with a thermistor and a light bulb.
What happens to the resistance of the thermistor and the light bulb when the temperature of the surrounding is at room temperature?
Rajah menunjukkan suatu litar transistor dengan sebuah termistor dan mentol.
Apakah yang berlaku kepada rintangan termistor dan mentol itu apabila suhu sekeliling adalah pada suhu bilik?
Resistance of thermistor low and lights up
Rintangan termistor rendah dan menyala
Resistance of thermistor low and lights up
Rintangan termistor rendah dan tidak menyala
Resistance of thermistor low and lights up
Rintangan termistor tinggi dan menyala
Resistance of thermistor low and lights up
Rintangan termistor tinggi dan tidak menyala
Diagram shows an automatic circuit using transistor. The resistance of thermistor decrease as the surronding temperature rises. The bell will ring when the potential difference across the resistor R is 4V. What is resistance of the thermistor?
Rintangan termistor berkurang jika suhu persekitaran bertambah. Loceng akan berbunyi apabila beza keupayaan merentasi R adalah 4V. Berapakah nilai rintangan resistor?
4 kΩ
5 kΩ
10 kΩ
16 kΩ
What is the voltage gain in a transistor if the input voltage in 40 mv and the output voltage in 3.6 V?
45
90
180
270
DC bias establishes the dc operating point for an amplifier.
True
False
The dc load line intersects the horizontal axis of a transistor characteristic curve at VCE = VCC.
False
True
For operation in the linear or active region, the base-emitter junction of a transistor is forward biased.
False
True
What type of bipolar junction transistor is this?
PNP
NPN
Which terminal was heavily dopped....?
Emitter
Base
Collector
None of the above
Ic represents
(a)
State region when BJT can be used as an amplifier .
DC operating point of a transistor is also known as ?
Quiescent point
load point
amplification point
junction point
Lower load line limit of BJT transistor is
Ic (saturation) Vce (cut off)
Ic (saturation) Vce (saturation)
Ic =0 Vce (cut off)
Ic (saturation) Vce =0
Transistor operates in the active region when
emitter and collector both junctions forward biased
emitter and collector both junctions reverse biased
emitter junction is forward biased and collector junction is reverse biased
emitter junction is reverse biased and collector junction is forward biased
transistor biasing represents ........... conditions
a.c
d.c
both ac and dc
none of the above
If biasing is not done in an amplifier circuit, it results in ……………
Decrease in the base current
Unfaithful amplification
Excessive collector bias
None of the above
Which of the following is NOT the terminal of a transistor?
Anode
Emitter
Base
Collector
