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A step - up transformer operates on a 23...

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

A

25 A

B

50 A

C

15 A

D

12.5 A

Text Solution

Verified by Experts

The correct Answer is:
B
`E_(S)/E_(P)=N_(S)/N_(P)=I_(P)/I_(S)`
`I_(P)=(N_(S)I_(S))/N_(P)`
`I_(P)=(N_(S)I_(S))/N_(P)`
= `25/1xx2`
= 50 A
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