1.

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

Answer»

<P>2V, 50 Hz
2 v, 5 Hz
200 V, 50 Hz
200 V, 500 Hz

Solution :Turns on primary winding = 500, turns on SECONDARY winding = 5000 , primary winding voltage `(E_(P))=20 V` and frequency = 50 Hz.
`(N_(s))/(N_(p))=(E_(s))/(E_(p))` or `(5000)/(500)=(E_(s))/(20)`
or`E_(s)=(5000xx20)/(500)=200 V` and frequency remains the same. THEREFORE secondary winding will have an output of 200 V, 50 Hz.


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