Q.

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

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a

45 V

b

15 V

c

90 V

d

300 V

answer is A.

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Detailed Solution

VsVp=NsNp=k⇒Vs30=32⇒Vs=45 V
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