1.

A primary of transformer has 100 turns an secondary has 500 turns. If input voltage 20 and frequency 50Hz, so the output voltage an frequency are... V and ....... Hz

Answer»

200,500
100,50
20,50
2,5

Solution :`N_1/N_2=epsilon_1/epsilon_2`
`THEREFORE epsilon_2=epsilon_1 XX N_1/N_2`
`=20xx5000/500`
`therefore epsilon_2`= 200 V
`therefore` Frequency of TRANSFORMER remains unchanged.


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