1) Дано: U=120B, f = 50 Гц, C = 74,8 мкФ.
Определяем: ω = 2πf = 2*50*π = 100π 1/c.
Xc = 1/(ωC) = 1/(100π*7,48*10⁻⁵) = 1/
0,023499
4=
42,5548 Ом.
I = U/Xc = 120/
42.5548 =
2,819894
А.
Qc = I²*Xc = 2,819894²*42,5548 = 338,3872 BAp.
2) Дано: U=120B, f = 50 Гц, L = 0,125 Гн.
Определяем: ω = 2πf = 2*50*π = 100π 1/c.
XL = ωL = 100π*0,125 =
39,26991
Ом.
I = U/XL = 130/39,26991
=
3,310423
А.
Qc = I²*XL =
3.310423²*39,26991 = 430,355 BAp.