Kemagnetan dan Pemanfaatannya
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Medium
Vi Kurniafitra
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kedua paku ini menjadi magnet batang setelah didekatkan dengan magnet, maka kutub-kutub paku AB dan paku CD adalah....
A = selatan, B = Utara, C = Selatan, D = Selatan
A = Utara, B = Selatan, C = Utara, D = Selatan
A = Selatan, B = Utara, C = Utara, D = Selatan
A = Utara, B = Selatan, C = Selatan, D = Utara
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
perbandingan Kumparan input dan output suatu trafo 50:1.Jika arus primer dan sekunder pada trafo berturut –turut 5A dan 150 A , efisiensi trafo sebesar...
2%
4%
30%
60%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seutas kawat dialiri arus sebesar 1.5 A. Kawat dipengaruhi oleh medan magnet sebesar 8T.Jika panjang kawat 20 cm, gaya magnet yang dialami kawat sebesar..
1.5 N
1.8N
2.4 N
6.0N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada gambar berikut yang merupakan sudut deklinasi adalah…..
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan bagan transformator berikut!
Apabila jumlah lilitan kumparan N1 = 100 lilitan dan N2 = 250 lilitan, tegangan V2 adalah….
25 Volt
50 Volt
100 Volt
250 Volt
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Membuat magnet dengan cara elektromagnetik dapat dilakukan dengan cara ….
melilitkan kawat menghantar pada besi atau baja
mengalirkan arus AC melalui solenoide berinti logam
mengalirkan arus DC melalui kumparan berinti besi
mengalirkan arus searah melalui batang besi
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Energi yang dikonversikan oleh generator adalah...
Energi Kimia menjadi energi listrik
Energi Listrik menjadi energi kimia
Energi gerak menjadi energi listrik
Energi listrik menjadi energi gerak
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