
6.3 penghantaran dan pengagihan tenaga elektrik
Quiz
•
Science
•
10th Grade
•
Practice Problem
•
Medium
Auni Bazilah
Used 17+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apakah fungsi transformer dalam sistem penghantaran tenaga elektrik?
Menukar tenaga elektrik kepada tenaga kimia
Meningkatkan atau menurunkan voltaj
Menyimpan tenaga elektrik
Menjana arus terus (DC)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mengapa voltaj ditingkatkan kepada 275 kV atau 500 kV sebelum penghantaran jarak jauh?
Untuk mengurangkan kos kabel
Supaya lebih selamat untuk pengguna
Untuk mengurangkan kehilangan tenaga akibat rintangan
Untuk meningkatkan arus elektrik
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apakah bahan yang biasa digunakan untuk kabel penghantaran atas tanah?
Besi
Kuprum
Keluli
Aluminium
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bagaimana kehilangan tenaga (P) dikira dalam kabel penghantaran?
P = I²R
P = V × I
P = V² / R
P = mgh
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Voltaj apakah yang digunakan oleh kebanyakan rumah di Malaysia?
11 kV
33 kV
240 V
415 V
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Manakah antara berikut BUKAN komponen sistem grid elektrik?
Transformer
Sel suria individu
Pencawang (substation)
Kabel penghantaran
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mengapa aluminium dipilih untuk kabel penghantaran dan bukannya kuprum?
Aluminium lebih ringan dan murah
Kuprum tidak boleh mengalirkan arus
Aluminium tidak menghantarkan elektrik
Kuprum terlalu kuat
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