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Q.

The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of 20 V, 50 Hz. The secondary will have an output of

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a

200 V, 50 Hz

b

2 V, 50 Hz

c

200 V, 500 Hz

d

2 V, 5 Hz

answer is A.

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Detailed Solution

VsVp=NsNp⇒Vs20=5000500⇒Vs=200VFrequency remains unchanged.
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