talyNjjcryHan talyNjjcryHan

07-05-2017
Physics

contestada

If the primary coil of a transformer has 200 turns and is supplied with 120 v ac power, how many turns must the secondary coil have to provide 12 v ac power?

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FlanScar FlanScar

07-05-2017

the ratio of the turns to the voltage should be equal
i.e: 200/120 = t/12
so the secondary coil should have 20 turns

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