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?
TRANSMISSION AND DISTRIBUTION OF ELECTRICITY
Quiz
•
Physics
•
12th Grade
•
Medium
Nur Suhaimi
Used 82+ times
FREE Resource
7 questions
Show all answers
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
10 questions
Asesmen Awal Materi Arus Bolak Balik
Quiz
•
12th Grade
12 questions
Energi dan Daya Listrik
Quiz
•
12th Grade
10 questions
Lenz's Law - Arah Induksi
Quiz
•
12th Grade
12 questions
Kuis Listrik Arus Searah (DC)
Quiz
•
12th Grade
8 questions
Peralatan Bunyi Hi-FI
Quiz
•
12th Grade
10 questions
NCCER PRACTICE EXAM PT1
Quiz
•
12th Grade
10 questions
Ohm’s Law
Quiz
•
10th - 12th Grade
10 questions
Earth Leakage Circuit Breaker (ELCB)
Quiz
•
12th Grade
25 questions
Equations of Circles
Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)
Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System
Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice
Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers
Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons
Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)
Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review
Quiz
•
10th Grade