Maximum_efficiency_of_a_transformer_for_a_constant_load_current_,_occu – McqOptions

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1.	Maximum_efficiency_of_a_transformer_for_a_constant_load_current_,_occurs_at$
A.	at any p.f
B.	zero p.f leading
C.	zero p.f lagging
D.	unity p.f
Answer» E.

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