MCQOPTIONS
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| 1. |
In a balanced 3 phase, 4 wire ac system the phase sequence is RYB. If the voltage of R phase = 230 0 volts, then what will be the B phase? |
| A. | 230 - 120 |
| B. | 230 - 90 |
| C. | 230 - 90 |
| D. | 230 - 120 |
| Answer» B. 230 - 90 | |