ARUS BOLAK BALIK
Quiz
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
Yulianti Yulianti
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sumber tegangan bolak-balik menghasilkan tegangan sesuai dengan fungsi V = 120 sin 20πt
(t dalam detik). Besar tegangan maksimum
20 V
120 V
60 √ 2 V
240 √ 2 V
20π V
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sumber tegangan bolak-balik menghasilkan tegangan sesuai dengan fungsi V = 120 sin 20πt
(t dalam detik). frekuensi anguler sumber tegangan bolak-balik
.
20 rad/s
120 rad/s
60 √2 rad/s
240 √2 rad/s
20 Π rad/s
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sumber arus PLN adalah arus bolak-balik (AC), tetapi lampu pijar di rumah tidak kelihatan berkedip-kedip (bergetar). Hal ini karena . . .
Tekanan lampu pijar relatif besar
Tekanan lampu pijar relatif kecil
Frekuensi arus bolak-balik relatif besar
Frekuensi arus bolak-balik relatif kecil
Semua jawaban salah
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nilai yang terlihat pada jala-jala listrik adalah…
nilai maksimum
nilai efektif
nilai absolut
nilai tak tentu
nilai standar
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sumber tegangan AC dengan persamaan v = 20 √ 2 Sin 1000t V,dihubungkan dengan rangkaian RLC. Jika diketahui nilai R = 400 Ω, L = 0,5 H, dan C = 5 μF, maka besar Impendansi rangkaian adalah . . .
A. 5 Ω
B. 50 Ω
C. 500 Ω
D. 5000 Ω
E. 50000 Ω
Jawab C
5 Ω
50 Ω
500 Ω
5000 Ω
50000 Ω
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Susunan seri hambatan 40 ohm dan kapasitor dengan reaktasi kapasitif 30 ohm dihubungkan dengan sumber arus bolak-balik, tegangan efektif 220V. Tentukan arus efektif….
4 A
4,4 A
1,2 A
12 A
9 A
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Susunan seri hambatan 80 Ohm dan kapasitor dengan reaktasi kapasitif 60 Ohm dihubungkan dengan sumber arus bolak-balik, tegangan efektif 300V. Tegangan maksimum adalah…
300 V
300 √2 V
150 V
150 √2 V
140 V
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