Physics Quiz: Topic 3.4 Transformers (Form 5)
Quiz
•
Physics
•
12th Grade
•
Practice Problem
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Medium
RASHIDAH Moe
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The function of the transformer in the transmission of
electricity is to
Fungsi transformer dalam penghantaran elektrik ialah
untuk
change the voltage magnitude/ mengubah magnitud voltan
increase the power / menambahkan kuasa
increase the resistance / menambahkan rintangan
reduce the time to transmit the electricity/ mengurangkan masa untuk menghantar elektrik
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If a transformer reduces voltage, it is called a....................... transformer.
Sekiranya transformer mengurangkan voltan, ia dipanggil transformer .......................
step left/ injak kiri
step right/ injak kanan
step up/ injak naik
step down/ injak turun
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If a transformer increases voltage, it is called a ......... transformer.
Sekiranya transformer meningkatkan voltan, ia dipanggil transformer .........
step right/ injak kanan
step left/ injak kiri
step up/ injak naik
step down/ injak turun
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The winding of a transformer which is connected to a source of energy is called the ....... winding.
Lilitan gegelung transformer yang disambungkan ke sumber tenaga dipanggil lilitan gegelung ....... .
primary/ primer
secondary/ sekunder
input
output
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ahmad charged his hand phone using battery charger.
Charger has a transformer as in the diagram.
What is the number of turns of the secondary coil?
Ahmad mengecas telefon bimbitnya menggunakan
sebuah pengecas bateri. Pengecas mengandungi
transformer seperti dalam rajah.
Berapakah bilangan lilitan gegelung sekunder?
TIPS!!!!
2 160
1 333
450
27
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A transformer has 500 turns on its primary coil and 100
turns on its secondary coil. An a.c voltage of 25 V is
connected across the primary coil.
What is the voltage across the secondary coil?
Sebuah transformer mempunyai 500 lilitan pada
gegelung primer dan 100 lilitan pada gegelung
sekunder. Satu bekalan a.u 25 V disambung merentasi
gegelung primer. Berapakah beza keupayaan
merentasi gegelung sekunder?
TIPS!!!!!!
5.0 V
12.5 V
50.0 V
175.0 V
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diagram shows a simple transformer. The bulb does
not light up. Which modification will cause the bulb to light up?
Rajah menunjukkan sebuah transformer ringkas. Mentol tersebut tidak menyala. Pengubahsuaian manakah yang akan menyebabkan mentol menyala?
Replace the 6 V battery with a 9 V battery
Menggantikan bateri 6 V dengan bateri 9 V
Increase the number of turns of the primary coil
Menambahkan bilangan lilitan gegelung primer
Decrease the number of turns of the primary coil
Mengurangkan bilangan lilitan gegelung primer
Replace the 6 V battery with a 6 V a.c power supply
Menggantikan 6 V bateri dengan bekalan kuasa 6 V a.u
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