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WorksheetsTransistor BJT
Total questions: 24
Worksheet time: 11mins
In a NPN Transistor, the current carriers are ………….
Acceptor Ions
Donor Ions
Free Electrons
Holes
At the Base-Emitter Junctions of a transistor, one finds ……………
A Reverse Bias
Low Resistance
A Wide Depletion Layer
None of the Above
In a Transistor ………………..
IE = IC + IB
IC = IE + IB
IE = IC – IB
IB = IC + IE
Which terminal was heavily dopped....?
Emitter
Base
Collector
None of the above
In which region, the transistor operates.....?
Saturation Region
Cut-off Region
Active Region
None of the above
transistor has 3 electrodes namely
PNP
NPN
Base/ Collector/ Emitter
Drain/ Gate/ Source
Transistors act like tiny "____________."
Electron sources
Switches
Batteries
Bees?
What are the 3 legs of a transistor called?
Base, Electrode, Commiter
Bridge, Collector, Extruder
Base, Collector, Emitter
Brake, Collection, Emit
A transistor is essentially what?
An output device
An electronic switch
A deivce that limits the flow of power
A transistor is a …………… operated device
Voltage
Both Voltage and Current
Current
None of the Above
In which circuit does the bulb light up?
What are the names of the terminals X, Y and Z?
X = Base, Y = Collector, Z = Emitter
X = Emitter, Y = Base, Z = Collector
X = Collector, Y = Base, Z = Emitter
X = Collector, Y = Emitter, Z = Base
Diagram shows a light controlled switch. The alarm will be activated when
the surrounding is dark
the surrounding is bright
the temperature of the surrounding is high
the temperature of the surrounding is low
One function of the transistor is to_____________?
rectify
amplify
limit
control
How many terminals are there in a transistor....?
1
2
3
4
Diagram shows an automatic switch circuit to light up a bulb during the day time. What changes should be done to light up the bulb at night?
Rajah menunjukkan litar suis automatik untuk menyalakan lampu semasa hari siang. Apakah perubahan yang perlu dilakukan untuk menyala mentol pada waktu malam?
Interchange R1 and R3
Tukar R1 dan R3
Reverse the terminal of the battery
Terbalikkan terminal bateri
Replace the npn transistor with a pnp transistor
Gantikan transistor npn dengan transistor pnp
Interchange R1 and the LDR
Terbalikkan R1 dan LDR
The street lights use electronic control system that switches the lights on when the surrounding is dark. What is the input sensor of the control system?
Lampu jalan menggunakan sistem kawalan elektronik yang menghidupkan lampu ketika sekitarnya gelap. Apakah sensor input sistem kawalan?
Thermistor
Termistor
Light emitting diode
Diod pemancar cahaya
Microphone
Mikrofon
Light dependent resistor
Perintang peka cahaya
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
The shorter leg of an LED is what?
Positive
Negative
What is the correct name for this component?
Transistor
Resistor
Thyristor
Thermistor
PCB stands for what?
Processed Circuit Board
Printed Circuit Board
Protected Circuit Batch
Printed Created Board
