Kuiz 4.3 Transformer
Quiz
•
Physics
•
9th - 12th Grade
•
Medium
LEE Moe
Used 4+ times
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan manakah yang betul tentang kecerahan mentol P dan mentol Q?
A. Mentol P lebih cerah daripada mentol Q
B. Mentol P dan mentol Q mempunyai kecerahan yang sama
C. Mentol Q lebih cerah daripada mentol P
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Tujuan menggunakan teras besi berlamina dalam transformer adalah untuk
A. menggurangkan rintangan
B. mengurangkan arus pusar
C. mengelakkan kebocoran fluks
D. memagnet dan menyahmagnetkan teras besi dengan mudah
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Mengapakah teras transformer dibuat dari besi lembut?
A. Besi lembut lebih murah daripada kuprum
B. Besi lembut ialah konduktor elektrik yang baik
C. Besi lembut menjadi magnet kekal yang baik
D. Besi lembut mudah dimagnet dan dinyahmagnetkan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah beza keupayaan merentasi mentol itu?
A. 7 V
B. 24 V
C. 30 V
D. 60 V
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara surihan gelombang berikut, yang manakah betul apabila gegelung tambahan berada pada teras dan disambung secara sesiri dengan gegelung sekunder?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah yang berlaku apabila bekalan input a.u. diganti dengan bateri 3 V?
A. Mentol tidak menyala
B. Kecerahan mentol tidak berubah
C. Kecerahan mentol bertambah
D. Mentol terbakar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. Apakah jenis dawai kuprum yang digunakan dan fungsi teras besi lembut berlamina dalam sebuah transformer?
A
B
C
D
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