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1. |
Rab is the resistance between the terminals A and B, Rbc between B and C and Rca between C and A. These 3 resistors are connected in star connection. After transforming to delta, the resistance at A will be? |
A. | Rc+Rb+Rc*Rb/Ra |
B. | Rc+Rb+Ra*Rb/Rc |
C. | Ra+Rb+Ra*Rc/Rb |
D. | Rc+Rb+Rc*Ra/Rb |
Answer» B. Rc+Rb+Ra*Rb/Rc | |