kemagnetan-induksi elekromagnetik
Quiz
•
Physics
•
9th Grade
•
Hard
R. Komaraningsih
Used 13+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trafo yang digunakan untuk menaikan tegangan bolak-balik adalah
Trafo step-up
Trafo step-down
Trafo otomatis
Trafo autotrans
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini cara-cara menimbulkan arus induksi, yakni:
1. magnet diam dalam kumparan
2. sebuah magnet berputar didekat kumparan
3. kumparan bergerak terhadap kutub magnet
4. kumparan primer dialiri arus searah
Adapun cara-cara yang benar ditunjukan oleh nomor …
1 dan 3
1 dan 4
2 dan 3
2 dan 4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ketika kutub magnet dimasukkan ke dalam kumparan, jumlah garis-garis gaya yang dilingkupi kumparan menjadi….
hilang
berkurang
bertambah banyak
berubah-ubah tidak menentu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu transformator memiliki kumparan primer 1000 lilitan dan kumparan sekunder 200 lilitan. Jika dihasilkan tegangan sekunder sebesar 120 volt, maka tegangan primernya adalah …
600 volt
500 volt
400 volt
300 volt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Generator atau dinamo adalah alat yang digunakan untuk mengubah….
energi listrik menjadi energi mekanik
energi listrik menjadi energi mekanik
energi potensial menjadi energi listrik
energi mekanik menjadi energi listrik
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
gaya gerak listrik (GGL) induksi ditimbulkan oleh …
Perubahan garis gaya magnet di sekitar kumparan
Banyak lilitan kawat pada kumparan
Banyaknya kumparan yang digunakan
Besarnya kumparan dan magnet yang digerakkan
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kutub magnet batang dalam keadaan bebas selalu menunjuk ke arah utara dan selatan bumi karena ….
letak kutub magnet bumi berada di kutub utara bumi
letak kutub utara bumi berada di sekitar kutub utara bumi
letak kutub bumi berada di kutub magnet bumi
letak kutub selatan magnet bumi berada di sekitar kutub utara bumi
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