Autotransformers are particularly economical when _________ – McqOptions

MCQOPTIONS

1.	Autotransformers are particularly economical when _________
A.	Voltage ratio is less than 2
B.	Voltage ratio is very high
C.	Voltage ratio is higher than 2 in smaller range
D.	Can be used anywhere
Answer» B. Voltage ratio is very high

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