Help me pls gays for 1.3.4

Question

Help me pls gays for 1.3.4

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Answer 1

1) А = 4 мА

3) T = 2*π*√(L*C) = 6,28 * √(9*10⁻⁶ Ф * 1 Гн) = 6,28 * 3*10⁻³ с ≈ 1,88*10⁻² с = 18,8 мс

v = 1 / T = 1 / 1,88*10⁻² с = 53 Гц

3) Xc = 1 / (ω*C);  XL = ω * L

Xc / XL = 1 / (ω*C*ω*L) = 1 /(ω²*C*L) = 1 / ((2*π*v)² * C * L)

Xc / XL = 1 / ((2 * 3,14 * 100 Гц)² * 20*10⁻⁶ Ф * 4*10⁻³ Гн) = 32