U₁/U₂ ≈ N₁/N₂,
U₁ = 220 В,
U₂ = 12 В,
N₁ = 2200,
N₂ - ?
N₂ = N₁*U₂/U₁
N₂ = 2200*12В/220В = 120
ответ. 120.
U₁/U₂ ≈ N₁/N₂,
U₁ = 220 В,
U₂ = 12 В,
N₁ = 2200,
N₂ - ?
N₂ = N₁*U₂/U₁
N₂ = 2200*12В/220В = 120
ответ. 120.