The ratio of primary/secondary voltages is 2 : 1 the saving in terms o – McqOptions

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1.	The ratio of primary/secondary voltages is 2 : 1 the saving in terms of weight of copper required if an autotransformer is used instead of a two-winding transformer will be:
A.	95%
B.	66.7%
C.	50%
D.	33.3%
Answer» D. 33.3%

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