A transformer has an iron loss of 900 W and copper loss of 1600 W at f – McqOptions

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1.	A transformer has an iron loss of 900 W and copper loss of 1600 W at full load. At what percentage of the load will be the efficiency be maximum?
A.	133
B.	125
C.	75
D.	66.66
Answer» D. 66.66

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