
ELEKTROMAGNETIK
Presentation
•
Science
•
9th Grade
•
Hard
Tanti Sulistiawati
Used 1+ times
FREE Resource
3 Slides • 5 Questions
1
ELEKTROMAGNETIK
2

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3
Cara menimbulkan GGL induksi
menggerak gerakan magenet keluar masuk kumparan
menggerakkan kumpran pada magnet
memutar magnet pada kumparan
4
Multiple Choice
1. Perhatikan elektromagnet dan magnet O-P seperti gambar berikut.
Jika antara N an O tolak menolak, M- N – O – P berturut-turut adalah kutub magnet….
U – S – U – S
S-U-U-S
U-S-S-U
S-U-S-U
5
Multiple Choice
2.transformator step down disamping memiliki efisiensi 80% dihubungkan dengan sumber arus AC 200 V arusnya 2 A tentukan besar arus sekunder
1 A
2 A
3 A
4 A
6 A
6
Multiple Select
3. Ciri-ciri trafo step-down adalah . . .
Ns > Np
Ns < Np
Is < Ip
Is > Ip
Vp > Vs
7
Multiple Choice
4.Induksi elektromagnetik adalah . . .
Gejala timbulnya gaya gerak listrik (GGL) dalam suatu penghantar akibat adanya perubahan fluks magnetik.
Gejala perubahan fluks medan magnet akibat perubahan arus listrik
Gejala terjadinya arus listrik akibat adanya perbedaan potensial pada ujung-ujung kumparan
Gejala munculnya beda potensial (tegangan) pada suatu penghantar karena perubahan arus listrik dalam kumparan
Gejala timbulnya gaya gerak listrik akibat adanya perubahan arus listrik
8
Multiple Choice
Perhatikan data berikut berikut:
(1) jumlah lilitan kumparan
(2) laju perubahan fluks magnet
(3) arah medan magnet
Faktor faktor yang mempengaruhi GGL induksi pada kumparan adalah...
1 dan 3
1 dan 2
2 saja
2 dan 3
ELEKTROMAGNETIK
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