The efficiency of a 20 KVA, 2000/200 V, single phase transformer at u – McqOptions

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1.	The efficiency of a 20 KVA, 2000/200 V, single phase transformer at unity pf is 98%. The given total losses at full load is 200 W. The pu resistance is?
A.	0.01
B.	0.1
C.	1.0
D.	0.0196
Answer» B. 0.1

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