
Fisika _ Trafo Grade 9
Authored by Josua Erson
Science
9th Grade
Used 4+ times

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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perbandingan jumlah liltan primer dan sekunder sebuah trafo 5 :4. Jika kuat arus outputnya 3 A , maka kuat arus primernya adalah...
2,4A
3,75 A
15A
45 A
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah trafo jumlah lilitan primer dan sekundernya 500 dan 400 lilitan. Jika tegangan primernya 110V, tegangan sekundernya adalah...
375 V
275 V
196 V
88 V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah kawat penghantar memiliki panjang 10 m tegak lurus berada dalam sebuah medan magnet sebesar 80 Tesla. Jika kuat arus listrik yang mengalir pada kawat sebesar 0,5 A , maka besar gaya lorentz adalah
800 N
400 N
80 N
4 N
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Rumus untuk mencari Lilitan Primer (Np) adalah....
Np=Vp x Ns /Vs
Np = Vs x Ns / Vp
Np = Vp x Ns / Np
Np = Vs x Np/Ns
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Rumus untuk mencari Lilitan Primer (Vp) adalah....
Vp=Vp x Ns /Vs
Vp = Vs x Np / Np
Vp = Vp x Ns / Np
Vp = Vs x Np/Ns
6.
MULTIPLE CHOICE QUESTION
5 mins • 15 pts
Lihat gambar transformator di bawah ini!
Tegangan primer trafo tersebut adalah …
24 v
246 v
264 v
343 v
7.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Trafo arus primer dan sekunder 0,8 A dan 0,5 A. Jika jumlah lilitan pada primer dan sekunder adalah 1000 lilitan dan 800 lilitan. Maka tentukan efisiensi trafo tersebut!
20%
50 %
10 %
5 %
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