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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