

MCQOPTIONS
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1. |
The per cent age resistance and per cent age react ance of a 10 kVA, 400 V/200 V, 3-phase transformer are 2% and 10% respectively. If the const ant losses in t he machine are 1%, the maximum possible percentage efficiency of the transformer is __________ |
A. | 96.85 |
B. | 9.685 |
C. | 968.5 |
D. | 0.9685 |
Answer» B. 9.685 | |