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Question
The input and output voltage of a transformer are 220 V and 44 V respectively. Find: the turns ratio.
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Solution
We know that
`"E"_"p"/"E"_"s" = "N"_"p" / "N"_"s"`
So turns ratio
`"N"_"s" / "N"_"p" = 44/ 220`
= 1.5
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