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A power transmission line feeds input power at 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V? |
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Answer» Solution :Primary coil `RARR` 1 Secondary coil `rarr` 2 For ideal transformer, we have `( epsilon_(1))/( epsilon_(2)) = ( N_(1))/( N_(2))` `:. N_(2) = N_(1) ( epsilon_(2))/(epsilon_(1))` `= ( 4000 ) ( 2130)/( 2300)` `:. N_(2) = 400` |
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