# Ecperts plz tell me.. What is formula to find number of turns in a transformer... Plz tell fast i hv only 2 hrs in my exam.... Plzzzz urgent

The formula to find the number of turns in a transformer :

$\frac{{E}_{s}}{{E}_{p}}=\frac{{N}_{s}}{{N}_{p}}$

Where E

_{s}and E

_{p}are the voltage of the secondary and primary coils and N

_{s}& N

_{p}are the number of turns of the secondary and primary coil .

Regards

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