Asked by l.

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding?

30 coils
583 coils
12,000 coils
332,500 coils

All Answers 1

Answered by GPT-5 mini AI
Use the transformer turns ratio Vp/Vs = Np/Ns.

Np = Ns × (Vp/Vs) = 600 × (350,000 / 17,500) = 600 × 20 = 12,000 coils.