TRANSMISSION AND DISTRIBUTION OF ELECTRICITY
Quiz
•
Physics
•
12th Grade
•
Medium
Nur Suhaimi
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is alternating current used instead of direct current in the transmission of electricity through long distances?
Mengapa arus ulangalik digunakan dan bukan arus terus dalam penghantaran elektrik jarak jauh?
Only alternating current can flow through the cables.
Hanya arus ulangalik boleh mengalir melalui kabel.
Alternating current voltage can be stepped up or stepped down by using transformers.
Arus ulangalik boleh dianjak naik atau dianjak turun dengan menggunakan transformer.
Most of the electrical appliances work only with alternating current.
Kebanyakan peralatan elektrik dapat berfungsi hanya dengan arus ulangalik.
Generating direct current is more complicated than generating alternating current.
Penjanaan arus terus adalah lebih rumit daripada penjanaan arus ulangalik.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the transmission of electricity through cable, the energy loss is directly proportional to
Dalam penghantaran elektrik menerusi kabel, kehilangan tenaga adalah berkadar terus dengan
the radius of the cable.
jejari kabel.
the resistance of the cable.
rintangan kabel.
the current flowing in the cable.
arus yang mengalir dalam kabel.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The function of the transformer in the transmission of electricity is to
Fungsi transformer dalam penghantaran elektrik ialah untuk
increase the resistance.
menambahkan rintangan
change the voltage.
menukar voltan.
reduce the time to transmit the electricity.
mengurangkan masa untuk menghantar elektrik.
increase the power.
menambahkan kuasa
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The efficiency of transmitting electrical power by cable through great distance can be improved by
Kecekapan penghantaran kuasa elektrik menggunakan kabel melalui jarak yang besar boleh ditingkatkan dengan
lowering the voltage and using thick cable.
turunkan voltan dan gunakan kabel yang tebal.
lowering the voltage and using big current.
turunkan voltan dan gunakan arus yang besar.
increasing the voltage and using thin cable.
tambahkan voltan dan gunakan kabel yang nipis.
increasing the voltage and using thick cable.
tambahkan voltan dan gunakan kabel yang tebal.
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
The power loss can be reduced by:
Reducing the resistance of the cables
Reducing the current in the cable
Reducing the voltage in the cable
Increasing the voltage in the cable
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
The example of non-renewable energy:
coal
natural gas
solar
petroleum
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
The example of renewable energy:
water
battery
wind
biomass
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