Physics Quiz: 4.3 Transistor
Quiz
•
Physics
•
12th Grade
•
Practice Problem
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Medium
RASHIDAH Moe
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many terminals are there in a transistor?
Berapakah bilangan terminal bagi sebuah transistor?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
One function of the transistor is to____________?
Salah satu fungsi bagi transistor adalah untuk_______________?
rectify
menukar
amplify
menguat
limit
menghad
control
mengawal
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diagram shows a light controlled switch. The alarm will be activated when
Rajah menunjukkan sebuah suis pengawal cahaya. Penggera akan diaktifkan apabila
the surrounding is dark
persekitaran gelap
the surrounding is bright
persekitaran cerah
the temperature of the surrounding is high
suhu persekitaran tinggi
the temperature of the surrounding is low
suhu persekitaran rendah
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