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प्रश्न
The primary coil of a transformer has 60 turns whereas its secondary coil has 3000 turns.
If a 220 V ac voltage is applied to the primary coil, how much emf is induced in the secondary coil?
उत्तर
The voltage of primary coils is
VP = 220 V
Let the voltage of secondary coil be VS.
Now `"N"_"s"/"N"_"P" = "V"_"S"/"V"_"P"`
⇒ `3000/60 = "V"_"S"/220`
⇒ VS = 50 × 220
= 11,000 volt
VS = 11,000 V
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