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1. |
If the resistors of star connected system are ZR, ZY, ZB then the impedance ZRY in delta connected system will be? |
A. | (Z<sub>R</sub>Z<sub>Y</sub>+ Z<sub>Y</sub>Z<sub>B</sub>+ Z<sub>B</sub>Z<sub>R</sub>)/Z<sub>B</sub> |
B. | (Z<sub>R</sub>Z<sub>Y</sub>+ Z<sub>Y</sub>Z<sub>B</sub>+ Z<sub>B</sub>Z<sub>R</sub>)/Z<sub>Y</sub> |
C. | (Z<sub>R</sub>Z<sub>Y</sub>+ Z<sub>Y</sub>Z<sub>B</sub>+ Z<sub>B</sub>Z<sub>R</sub>)/Z<sub>R</sub> |
D. | (Z<sub>R</sub>Z<sub>Y</sub>+ Z<sub>Y</sub>Z<sub>B</sub>+ Z<sub>B</sub>Z<sub>R</sub>)/(Z<sub>R</sub>+Z<sub>Y</sub> ) |
Answer» B. (Z<sub>R</sub>Z<sub>Y</sub>+ Z<sub>Y</sub>Z<sub>B</sub>+ Z<sub>B</sub>Z<sub>R</sub>)/Z<sub>Y</sub> | |