A 50 kVA transformer has a core loss of 500 W and full-load loss of 90 – McqOptions

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1.	A 50 kVA transformer has a core loss of 500 W and full-load loss of 900 W. The load at which the efficiency is maximum is:
A.	27.45 kVA
B.	37.75 kVA
C.	45.5 kVA
D.	47.5 kVA
Answer» C. 45.5 kVA

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