Tolong dijawab dengan cara Terima kasih

25][ RAC

RC seri
Vm = 200 V
f = 25 Hz.
R = 200 ohm
C = 100/π × 10⁻⁶ F
i = __?

Reaktansi kapasitif
Xc = 1 / (2π f C)
Xc = 1 / (2π • 25 • 100/π × 10⁻⁶)
Xc = 10⁶ / 5000
Xc = 200 ohm

Impedansi
Z = √(R² + Xc²)
Z = √(200² + 200²)
Z = 200√2 ohm

kuat arus
im = Vm / Z
im = 200 / 200√2
im = 1/√2 = ½√2 A ← jwb


26][ Radiasi kalor
T = T → λ = 580 μm
T' = 2T → λ' = __?

Hk. pergeseran Wien
λ T = konstanta

konstanta = konstanta
λ' T' = λ T
λ' = (T / T') λ
λ' = ½ • 580
λ' = 290 μm ← jwb