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 __________

The per cent age resistance and per cent age react ance of a 10 kVA, 4

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

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