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A power transmission line feeds input power at 2300 V to a step down trnasformer with it primary windings having 4000 turns. What should be the number of turns in the seconday windings in order to get output power at 230 V?

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Here, `E_(p) = 2300 v, n_(p) = 4000, n_(s) = ? E_(s) = 230 V`
As `(E_(s))/(E_(p)) = (n_(s))/(n_(p)) :. (230)/(2300) = (n_(s))/(4000) = (230 xx 4000)/(2300) = 400`
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