1.

In the question above the impedance at Y is?

A. (Z<sub>RY</sub>)/(Z<sub>RY</sub>+Z<sub>BY</sub>+Z<sub>BR</sub>)
B. (Z<sub>BY</sub>)/(Z<sub>RY</sub>+Z<sub>BY</sub>+Z<sub>BR</sub>)
C. (Z<sub>RY</sub>Z<sub>BY</sub>)/(Z<sub>RY</sub>+Z<sub>BY</sub>+Z<sub>BR</sub>)
D. (Z<sub>RY</sub>Z<sub>BR</sub>)/(Z<sub>RY</sub>+Z<sub>BY</sub>+Z<sub>BR</sub>)
Answer» D. (Z<sub>RY</sub>Z<sub>BR</sub>)/(Z<sub>RY</sub>+Z<sub>BY</sub>+Z<sub>BR</sub>)


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