Kemagnetan dan Pemanfaatannya Kelas 9

Quiz
•
Science
•
9th Grade
•
Hard
ratna julyanti
Used 130+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 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
30 sec • 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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada gambar berikut yang merupakan sudut deklinasi adalah…..
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 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
5.
MULTIPLE CHOICE QUESTION
30 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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan kegiatan berikut.
1. menggosok-gosok besi dengan magnet
2. mengaliri magnet arus listrik AC
3. membakar magnet
4. menginduksi besi dengan magnet
Cara menghilangkan sifat magnet adalah ....
(1) dan (2)
(1) dan (3)
(2) dan (3)
(3) dan (4)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah transformator memiliki 500 lilitan pada kumparan primer dan 100 lilitan pada kumparan sekunder. Jika kuat arus yang masuk pada transformator tersebut 5 A, maka kuat arus yang dihasilkan adalah ....
1 A
5 A
25 A
50 A
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