1.

Ra is resistance at A, Rb is resistance at B, Rc is resistance at C in star connection. After transforming to delta, what is resistance between B and C?

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


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