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A step-up transformer has transformation...

A step-up transformer has transformation ratio of `3:2` what is the voltage in secondary if voltage in primary is `30V`?

A

45 V

B

15 V

C

90 V

D

300 V

Text Solution

Verified by Experts

The correct Answer is:
A
Transformation ratio `k=N_(s)//N_(p),"Since "V_(s)//V_(p)=N_(s)//N_(p)`
`therefore V_(s)=N_(s)//N_(p) xx V_(p)`
`implies V_(s)=(3)/(2) xx 30=45 V`
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