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A step up transformer operates on a 230 ...

A step up transformer operates on a 230 V line and a load current of 2 ampere. The ratio of the primary and secondary windings is 1:25. What is the current in the primary ?

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Using the relation `(N_(P))/(N_(S))=(I_(S))/(I_(P)),I_(P)=(N_(S)I_(S))/(N_(P))`
Here `N_(P)//N_(S)=1//25(or) N_(S)//N_(P)=25//1=25 and I_(S)=2A`
Current in primary, `I_(P)=25xx2=50A`
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