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1. |
If a resistor Rx is connected between nodes X and Y, Ry between X and Y, Rz between Y and Z to form a delta connection, then after transformation to star, the resistance at node Y is? |
A. | RzRy/(Rx+Ry+Rz) |
B. | RzRx/(Rx+Ry+Rz) |
C. | RxRy/(Rx+Ry+Rz) |
D. | (Rz+Ry)/(Rx+Ry+Rz) |
Answer» C. | |