Question

a transformer is used to transform a 230 V mains supply to 12 V for a computer games console. A) the primary coil has 5000 turns. how many turns should there be on the secondary coil. B) in a normal use of a current of 0.40 A flows in the secondary coil. What current flows in the primary coil? Assume that there are no power losses in that transformer​

Answer 1

Answer:

Explanation:

A)  In a Transformer

     $\frac{Vp}{Vs}=\frac{Np}{Ns}$

     $\frac{230}{12} =\frac{5000}{Ns}$

     $Ns=\frac{60000}{230}$

     $Ns=260$

   ∴The number of turns should be there on the secondary coil is 260.8 turns