Two parallel branches have impedances Z₁ = 3 + j4 Ω and Z₂ = 3 - j4 Ω. Which statements are correct?
Select all that apply

Question

Two parallel branches have impedances Z₁ = 3 + j4 Ω and Z₂ = 3 − j4 Ω. Which statements are correct?

G1 Physics · Accepted Answer

The branch admittances are complex conjugates, so their imaginary parts cancel. Therefore total admittance and equivalent impedance are purely real, making source current in phase with voltage. The branch currents are conjugate phasors, not identical.