9. An electric circuit consists of two components as shown in the figure below. Z1 www R₁ ellee XL 22 www Z2 R₂ Xc The generalisation of the resistance and reactance to an AC circuit is a complex number, known as impedance. For the electrical circuit pictured above, the impedance of the first component can be expressed by z₁ = R₁ + XLi and the impedance of the second component can be expressed by 22 = R2 - Xci, where R₁ = 392, XL = 392, R₂ = 492, and Xc = 492. For electrical circuits connected in parallel, as shown above, the total impendance z of the circuit can be computed using the relationship 1 1 (a) Compute the total impedance z of the two components. (b) What are the modulus and principal argument of the total impedance?

9. An electric circuit consists of two components as shown in the figure below. Z1 www R₁ ellee XL 22 www Z2 R₂ Xc The generalisation of the resistance and reactance to an AC circuit is a complex number, known as impedance. For the electrical circuit pictured above, the impedance of the first component can be expressed by z₁ = R₁ + XLi and the impedance of the second component can be expressed by 22 = R2 - Xci, where R₁ = 392, XL = 392, R₂ = 492, and Xc = 492. For electrical circuits connected in parallel, as shown above, the total impendance z of the circuit can be computed using the relationship 1 1 (a) Compute the total impedance z of the two components. (b) What are the modulus and principal argument of the total impedance?