Question

Tolong dibantu beserta penjelasannya

Answer 1

Verified answer

Listrik Statis
- Rangkaian Kapasitor

C₁ = 4 μF
C₂ = 9 μF
C₃ = 3 μF
V = 4 V

Cₚ untuk C₁ dan C₂ :
Cₚ = C₁ + C₂
Cₚ = 9 μF + 3 μF
Cₚ = 12 μF

1/Cₛ = 1/12+ 1/4
1/Cₛ = 4/12
Cₛ = 3 μF (Pernyataan 1 benar)

Q = CₛV
Q = (3 μF)(4) = 12 μC (pernyataan 2 salah)

V₁ = Q / C₁
V₁ = (12 μC) / (4 μF)
V₁ = 3 V (Pernyataan 3 benar)

Vₚ = V - V₁
Vₚ = 4 V - 3 V = 1 V

W₃ = ½ C₃ Vₚ²
W₃ = ½ (3 μF) (1 V)²
W₃ = 1,5 μJ (Pernyataan 4 salah)

Jawaban : B